| 
                 
                    Closing price on 4/1/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    56.50 | 
                 
                
                    | High | 
                    56.50 | 
                 
                
                    | Low | 
                    56.50 | 
                     
                
                    | Volume | 
                    820 | 
                                 
                
                    | Split-adjusted Price | 
                    1.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DRC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/1/2008
             | 
            
                +0.50 / +0.89%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                56.50
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                1.90
             |                                 
            
                820
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2008
             | 
            
                +0.50 / +0.90%
             |             
            
                56.00
             |           
            
                56.00
             |               
            
                56.00
             |                           
            
                56.00
             | 
            
                56.00
             |                     
            
                1.88
             |                                 
            
                430
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2008
             | 
            
                +0.50 / +0.91%
             |             
            
                55.50
             |           
            
                55.50
             |               
            
                55.50
             |                           
            
                55.50
             | 
            
                55.50
             |                     
            
                1.86
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2008
             | 
            
                +0.50 / +0.92%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                1.85
             |                                 
            
                5,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2008
             | 
            
                -0.50 / -0.91%
             |             
            
                53.00
             |           
            
                55.00
             |               
            
                52.50
             |                           
            
                54.50
             | 
            
                54.50
             |                     
            
                1.83
             |                                 
            
                24,490
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2008
             | 
            
                -2.50 / -4.35%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                1.85
             |                                 
            
                760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2008
             | 
            
                -3.00 / -4.96%
             |             
            
                57.50
             |           
            
                63.00
             |               
            
                57.50
             |                           
            
                57.50
             | 
            
                57.50
             |                     
            
                1.93
             |                                 
            
                12,570
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2008
             | 
            
                -3.00 / -4.72%
             |             
            
                62.00
             |           
            
                63.00
             |               
            
                60.50
             |                           
            
                60.50
             | 
            
                60.50
             |                     
            
                2.03
             |                                 
            
                13,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2008
             | 
            
                0.00 / 0.00%
             |             
            
                63.50
             |           
            
                66.50
             |               
            
                63.50
             |                           
            
                63.50
             | 
            
                63.50
             |                     
            
                2.13
             |                                 
            
                19,560
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2008
             | 
            
                -3.00 / -4.51%
             |             
            
                63.50
             |           
            
                65.50
             |               
            
                63.50
             |                           
            
                63.50
             | 
            
                63.50
             |                     
            
                2.13
             |                                 
            
                14,060
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2008
             | 
            
                -3.50 / -5.00%
             |             
            
                66.50
             |           
            
                66.50
             |               
            
                66.50
             |                           
            
                66.50
             | 
            
                66.50
             |                     
            
                2.23
             |                                 
            
                1,870
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2008
             | 
            
                -3.50 / -4.76%
             |             
            
                70.00
             |           
            
                71.00
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.00
             |                     
            
                2.35
             |                                 
            
                19,630
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2008
             | 
            
                -1.50 / -2.00%
             |             
            
                75.00
             |           
            
                75.00
             |               
            
                73.50
             |                           
            
                73.50
             | 
            
                73.50
             |                     
            
                2.47
             |                                 
            
                14,110
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2008
             | 
            
                +1.00 / +1.35%
             |             
            
                76.00
             |           
            
                76.00
             |               
            
                75.00
             |                           
            
                75.00
             | 
            
                75.00
             |                     
            
                2.52
             |                                 
            
                28,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2008
             | 
            
                +3.50 / +4.96%
             |             
            
                72.00
             |           
            
                74.00
             |               
            
                71.00
             |                           
            
                74.00
             | 
            
                74.00
             |                     
            
                2.48
             |                                 
            
                13,420
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2008
             | 
            
                -3.50 / -4.73%
             |             
            
                74.00
             |           
            
                74.00
             |               
            
                70.50
             |                           
            
                70.50
             | 
            
                70.50
             |                     
            
                2.37
             |                                 
            
                21,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2008
             | 
            
                -3.50 / -4.52%
             |             
            
                81.00
             |           
            
                81.00
             |               
            
                74.00
             |                           
            
                74.00
             | 
            
                74.00
             |                     
            
                2.48
             |                                 
            
                57,360
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2008
             | 
            
                +3.50 / +4.73%
             |             
            
                77.50
             |           
            
                77.50
             |               
            
                77.50
             |                           
            
                77.50
             | 
            
                77.50
             |                     
            
                2.60
             |                                 
            
                59,090
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2008
             | 
            
                +3.50 / +4.96%
             |             
            
                74.00
             |           
            
                74.00
             |               
            
                74.00
             |                           
            
                74.00
             | 
            
                74.00
             |                     
            
                2.48
             |                                 
            
                18,150
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2008
             | 
            
                -3.50 / -4.73%
             |             
            
                70.50
             |           
            
                70.50
             |               
            
                70.50
             |                           
            
                70.50
             | 
            
                70.50
             |                     
            
                2.37
             |                                 
            
                16,720
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2008
             | 
            
                -3.50 / -4.52%
             |             
            
                74.00
             |           
            
                74.00
             |               
            
                74.00
             |                           
            
                74.00
             | 
            
                74.00
             |                     
            
                2.48
             |                                 
            
                1,210
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2008
             | 
            
                -4.00 / -4.91%
             |             
            
                77.50
             |           
            
                77.50
             |               
            
                77.50
             |                           
            
                77.50
             | 
            
                77.50
             |                     
            
                2.60
             |                                 
            
                1,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/29/2008
             | 
            
                -4.00 / -4.68%
             |             
            
                81.50
             |           
            
                82.00
             |               
            
                81.50
             |                           
            
                81.50
             | 
            
                81.50
             |                     
            
                2.73
             |                                 
            
                8,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2008
             | 
            
                -4.50 / -5.00%
             |             
            
                89.00
             |           
            
                89.50
             |               
            
                85.50
             |                           
            
                85.50
             | 
            
                85.50
             |                     
            
                2.87
             |                                 
            
                13,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2008
             | 
            
                -4.50 / -4.76%
             |             
            
                90.00
             |           
            
                99.00
             |               
            
                90.00
             |                           
            
                90.00
             | 
            
                90.00
             |                     
            
                3.02
             |                                 
            
                9,560
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2008
             | 
            
                -4.50 / -4.55%
             |             
            
                94.50
             |           
            
                95.00
             |               
            
                94.50
             |                           
            
                94.50
             | 
            
                94.50
             |                     
            
                3.17
             |                                 
            
                5,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2008
             | 
            
                +4.00 / +4.21%
             |             
            
                99.50
             |           
            
                99.50
             |               
            
                99.00
             |                           
            
                99.00
             | 
            
                99.00
             |                     
            
                3.32
             |                                 
            
                9,260
             |            
            
                 
             |                                       
         
    
        
            | 
                2/22/2008
             | 
            
                -5.00 / -5.00%
             |             
            
                95.00
             |           
            
                95.00
             |               
            
                95.00
             |                           
            
                95.00
             | 
            
                95.00
             |                     
            
                3.19
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2008
             | 
            
                -5.00 / -4.76%
             |             
            
                100.00
             |           
            
                100.00
             |               
            
                100.00
             |                           
            
                100.00
             | 
            
                100.00
             |                     
            
                3.36
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2008
             | 
            
                -5.00 / -4.55%
             |             
            
                105.00
             |           
            
                110.00
             |               
            
                105.00
             |                           
            
                105.00
             | 
            
                105.00
             |                     
            
                3.52
             |                                 
            
                4,610
             |  
            
                 
             |                                                              
             
    
         
    
    
 |