| 
                 
                    Closing price on 3/8/2007
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    220.00 | 
                 
                
                    | High | 
                    220.00 | 
                 
                
                    | Low | 
                    220.00 | 
                     
                
                    | Volume | 
                    38,360 | 
                                 
                
                    | Split-adjusted Price | 
                    5.24 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DRC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/8/2007
             | 
            
                +10.00 / +4.76%
             |             
            
                220.00
             |           
            
                220.00
             |               
            
                220.00
             |                           
            
                220.00
             | 
            
                220.00
             |                     
            
                5.24
             |                                 
            
                38,360
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2007
             | 
            
                -10.00 / -4.55%
             |             
            
                210.00
             |           
            
                210.00
             |               
            
                210.00
             |                           
            
                210.00
             | 
            
                210.00
             |                     
            
                5.00
             |                                 
            
                107,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2007
             | 
            
                -10.00 / -4.35%
             |             
            
                230.00
             |           
            
                230.00
             |               
            
                220.00
             |                           
            
                220.00
             | 
            
                220.00
             |                     
            
                5.24
             |                                 
            
                82,880
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2007
             | 
            
                0.00 / 0.00%
             |             
            
                230.00
             |           
            
                241.00
             |               
            
                230.00
             |                           
            
                230.00
             | 
            
                230.00
             |                     
            
                5.47
             |                                 
            
                145,320
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2007
             | 
            
                -5.00 / -2.13%
             |             
            
                235.00
             |           
            
                235.00
             |               
            
                230.00
             |                           
            
                230.00
             | 
            
                230.00
             |                     
            
                5.47
             |                                 
            
                88,360
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2007
             | 
            
                +4.00 / +1.73%
             |             
            
                231.00
             |           
            
                242.00
             |               
            
                231.00
             |                           
            
                235.00
             | 
            
                235.00
             |                     
            
                5.59
             |                                 
            
                86,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2007
             | 
            
                +8.00 / +3.59%
             |             
            
                223.00
             |           
            
                234.00
             |               
            
                215.00
             |                           
            
                231.00
             | 
            
                231.00
             |                     
            
                5.50
             |                                 
            
                121,260
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2007
             | 
            
                +10.00 / +4.69%
             |             
            
                223.00
             |           
            
                223.00
             |               
            
                223.00
             |                           
            
                223.00
             | 
            
                223.00
             |                     
            
                5.31
             |                                 
            
                2,480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2007
             | 
            
                +10.00 / +4.93%
             |             
            
                210.00
             |           
            
                213.00
             |               
            
                210.00
             |                           
            
                213.00
             | 
            
                213.00
             |                     
            
                5.07
             |                                 
            
                5,720
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2007
             | 
            
                +9.00 / +4.64%
             |             
            
                203.00
             |           
            
                203.00
             |               
            
                203.00
             |                           
            
                203.00
             | 
            
                203.00
             |                     
            
                4.83
             |                                 
            
                23,280
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2007
             | 
            
                +9.00 / +4.86%
             |             
            
                192.00
             |           
            
                194.00
             |               
            
                192.00
             |                           
            
                194.00
             | 
            
                194.00
             |                     
            
                4.62
             |                                 
            
                63,570
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2007
             | 
            
                +6.00 / +3.35%
             |             
            
                185.00
             |           
            
                187.00
             |               
            
                185.00
             |                           
            
                185.00
             | 
            
                185.00
             |                     
            
                4.40
             |                                 
            
                72,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/12/2007
             | 
            
                +8.00 / +4.68%
             |             
            
                179.00
             |           
            
                179.00
             |               
            
                179.00
             |                           
            
                179.00
             | 
            
                179.00
             |                     
            
                4.26
             |                                 
            
                40,530
             |            
            
                 
             |                                       
         
    
        
            | 
                2/9/2007
             | 
            
                -9.00 / -5.00%
             |             
            
                180.00
             |           
            
                180.00
             |               
            
                171.00
             |                           
            
                171.00
             | 
            
                171.00
             |                     
            
                4.07
             |                                 
            
                87,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/8/2007
             | 
            
                +8.00 / +4.65%
             |             
            
                180.00
             |           
            
                180.00
             |               
            
                180.00
             |                           
            
                180.00
             | 
            
                180.00
             |                     
            
                4.28
             |                                 
            
                48,440
             |            
            
                 
             |                                       
         
    
        
            | 
                2/7/2007
             | 
            
                +8.00 / +4.88%
             |             
            
                172.00
             |           
            
                172.00
             |               
            
                172.00
             |                           
            
                172.00
             | 
            
                172.00
             |                     
            
                4.09
             |                                 
            
                69,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/6/2007
             | 
            
                +7.00 / +4.46%
             |             
            
                159.00
             |           
            
                164.00
             |               
            
                159.00
             |                           
            
                164.00
             | 
            
                164.00
             |                     
            
                3.90
             |                                 
            
                89,790
             |            
            
                 
             |                                       
         
    
        
            | 
                2/5/2007
             | 
            
                +7.00 / +4.67%
             |             
            
                157.00
             |           
            
                157.00
             |               
            
                157.00
             |                           
            
                157.00
             | 
            
                157.00
             |                     
            
                3.74
             |                                 
            
                119,920
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/2/2007
             | 
            
                +1.00 / +0.67%
             |             
            
                150.00
             |           
            
                150.00
             |               
            
                150.00
             |                           
            
                150.00
             | 
            
                150.00
             |                     
            
                3.57
             |                                 
            
                164,240
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2007
             | 
            
                +7.00 / +4.93%
             |             
            
                149.00
             |           
            
                149.00
             |               
            
                149.00
             |                           
            
                149.00
             | 
            
                149.00
             |                     
            
                3.55
             |                                 
            
                224,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/31/2007
             | 
            
                +6.00 / +4.41%
             |             
            
                142.00
             |           
            
                142.00
             |               
            
                142.00
             |                           
            
                142.00
             | 
            
                142.00
             |                     
            
                3.38
             |                                 
            
                61,340
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2007
             | 
            
                +6.00 / +4.62%
             |             
            
                136.00
             |           
            
                136.00
             |               
            
                136.00
             |                           
            
                136.00
             | 
            
                136.00
             |                     
            
                3.24
             |                                 
            
                29,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2007
             | 
            
                +6.00 / +4.84%
             |             
            
                130.00
             |           
            
                130.00
             |               
            
                130.00
             |                           
            
                130.00
             | 
            
                130.00
             |                     
            
                3.09
             |                                 
            
                84,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/26/2007
             | 
            
                0.00 / 0.00%
             |             
            
                124.00
             |           
            
                130.00
             |               
            
                124.00
             |                           
            
                124.00
             | 
            
                124.00
             |                     
            
                2.95
             |                                 
            
                223,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2007
             | 
            
                +5.00 / +4.20%
             |             
            
                124.00
             |           
            
                124.00
             |               
            
                124.00
             |                           
            
                124.00
             | 
            
                124.00
             |                     
            
                2.95
             |                                 
            
                183,980
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2007
             | 
            
                +5.00 / +4.39%
             |             
            
                119.00
             |           
            
                119.00
             |               
            
                119.00
             |                           
            
                119.00
             | 
            
                119.00
             |                     
            
                2.83
             |                                 
            
                69,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2007
             | 
            
                +5.00 / +4.59%
             |             
            
                114.00
             |           
            
                114.00
             |               
            
                114.00
             |                           
            
                114.00
             | 
            
                114.00
             |                     
            
                2.71
             |                                 
            
                93,310
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2007
             | 
            
                +1.00 / +0.93%
             |             
            
                109.00
             |           
            
                113.00
             |               
            
                109.00
             |                           
            
                109.00
             | 
            
                109.00
             |                     
            
                2.59
             |                                 
            
                210,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2007
             | 
            
                +5.00 / +4.85%
             |             
            
                108.00
             |           
            
                108.00
             |               
            
                108.00
             |                           
            
                108.00
             | 
            
                108.00
             |                     
            
                2.57
             |                                 
            
                20,170
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2007
             | 
            
                +4.00 / +4.04%
             |             
            
                103.00
             |           
            
                103.00
             |               
            
                103.00
             |                           
            
                103.00
             | 
            
                103.00
             |                     
            
                2.45
             |                                 
            
                128,360
             |  
            
                 
             |                                                              
             
    
         
    
    
 |