| 
                 
                    Closing price on 5/14/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    15.80 | 
                 
                
                    | High | 
                    15.80 | 
                 
                
                    | Low | 
                    15.10 | 
                     
                
                    | Volume | 
                    70,410 | 
                                 
                
                    | Split-adjusted Price | 
                    12.26 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
APC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/14/2012
             | 
            
                -0.70 / -4.43%
             |             
            
                15.80
             |           
            
                15.80
             |               
            
                15.10
             |                           
            
                15.10
             | 
            
                15.10
             |                     
            
                12.26
             |                                 
            
                70,410
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2012
             | 
            
                +0.10 / +0.64%
             |             
            
                16.20
             |           
            
                16.40
             |               
            
                15.70
             |                           
            
                15.80
             | 
            
                15.80
             |                     
            
                12.82
             |                                 
            
                172,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2012
             | 
            
                +0.70 / +4.67%
             |             
            
                15.20
             |           
            
                15.70
             |               
            
                15.20
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                12.74
             |                                 
            
                94,730
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2012
             | 
            
                -0.20 / -1.32%
             |             
            
                15.20
             |           
            
                15.20
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                12.18
             |                                 
            
                83,980
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/8/2012
             | 
            
                -0.20 / -1.30%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.20
             |                           
            
                15.20
             | 
            
                15.20
             |                     
            
                12.34
             |                                 
            
                83,270
             |            
            
                 
             |                                       
         
    
        
            | 
                5/7/2012
             | 
            
                +0.20 / +1.32%
             |             
            
                14.90
             |           
            
                15.60
             |               
            
                14.90
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                12.50
             |                                 
            
                77,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/4/2012
             | 
            
                -0.10 / -0.65%
             |             
            
                15.20
             |           
            
                15.40
             |               
            
                15.00
             |                           
            
                15.20
             | 
            
                15.20
             |                     
            
                12.34
             |                                 
            
                118,980
             |            
            
                 
             |                                       
         
    
        
            | 
                5/3/2012
             | 
            
                -0.20 / -1.29%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                14.80
             |                           
            
                15.30
             | 
            
                15.30
             |                     
            
                12.42
             |                                 
            
                23,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/2/2012
             | 
            
                +0.70 / +4.73%
             |             
            
                14.80
             |           
            
                15.50
             |               
            
                14.60
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                12.58
             |                                 
            
                160,600
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2012
             | 
            
                -0.30 / -1.99%
             |             
            
                14.80
             |           
            
                15.10
             |               
            
                14.50
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                12.01
             |                                 
            
                158,640
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2012
             | 
            
                -0.60 / -3.82%
             |             
            
                15.60
             |           
            
                15.60
             |               
            
                15.10
             |                           
            
                15.10
             | 
            
                15.10
             |                     
            
                12.26
             |                                 
            
                63,880
             |            
            
                 
             |                                       
         
    
        
            | 
                4/25/2012
             | 
            
                -0.20 / -1.26%
             |             
            
                15.90
             |           
            
                16.50
             |               
            
                15.70
             |                           
            
                15.70
             | 
            
                15.70
             |                     
            
                12.74
             |                                 
            
                61,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/24/2012
             | 
            
                +0.50 / +3.25%
             |             
            
                15.40
             |           
            
                15.90
             |               
            
                15.20
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                12.91
             |                                 
            
                50,390
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2012
             | 
            
                +0.70 / +4.76%
             |             
            
                15.10
             |           
            
                15.40
             |               
            
                15.10
             |                           
            
                15.40
             | 
            
                15.40
             |                     
            
                12.50
             |                                 
            
                163,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/20/2012
             | 
            
                +0.20 / +1.38%
             |             
            
                14.30
             |           
            
                14.70
             |               
            
                14.30
             |                           
            
                14.70
             | 
            
                14.70
             |                     
            
                11.93
             |                                 
            
                11,840
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2012
             | 
            
                -0.30 / -2.03%
             |             
            
                14.80
             |           
            
                14.80
             |               
            
                14.40
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                11.77
             |                                 
            
                25,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2012
             | 
            
                -0.40 / -2.63%
             |             
            
                14.80
             |           
            
                15.10
             |               
            
                14.80
             |                           
            
                14.80
             | 
            
                14.80
             |                     
            
                12.01
             |                                 
            
                16,330
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2012
             | 
            
                +0.50 / +3.40%
             |             
            
                14.60
             |           
            
                15.30
             |               
            
                14.60
             |                           
            
                15.20
             | 
            
                15.20
             |                     
            
                12.34
             |                                 
            
                40,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2012
             | 
            
                +0.10 / +0.68%
             |             
            
                14.50
             |           
            
                15.10
             |               
            
                14.50
             |                           
            
                14.70
             | 
            
                14.70
             |                     
            
                11.93
             |                                 
            
                78,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/13/2012
             | 
            
                0.00 / 0.00%
             |             
            
                14.60
             |           
            
                14.70
             |               
            
                14.50
             |                           
            
                14.60
             | 
            
                14.60
             |                     
            
                11.85
             |                                 
            
                69,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2012
             | 
            
                +0.40 / +2.82%
             |             
            
                14.20
             |           
            
                14.90
             |               
            
                14.20
             |                           
            
                14.60
             | 
            
                14.60
             |                     
            
                11.85
             |                                 
            
                57,550
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2012
             | 
            
                +0.30 / +2.16%
             |             
            
                14.10
             |           
            
                14.30
             |               
            
                14.00
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                11.53
             |                                 
            
                30,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2012
             | 
            
                0.00 / 0.00%
             |             
            
                14.30
             |           
            
                14.40
             |               
            
                13.90
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                11.28
             |                                 
            
                20,750
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2012
             | 
            
                -0.30 / -2.11%
             |             
            
                14.10
             |           
            
                14.20
             |               
            
                13.80
             |                           
            
                13.90
             | 
            
                13.90
             |                     
            
                11.28
             |                                 
            
                47,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/6/2012
             | 
            
                -0.10 / -0.70%
             |             
            
                14.30
             |           
            
                14.40
             |               
            
                14.20
             |                           
            
                14.20
             | 
            
                14.20
             |                     
            
                11.53
             |                                 
            
                25,930
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2012
             | 
            
                -0.10 / -0.69%
             |             
            
                14.40
             |           
            
                14.40
             |               
            
                14.30
             |                           
            
                14.30
             | 
            
                14.30
             |                     
            
                11.61
             |                                 
            
                15,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2012
             | 
            
                0.00 / 0.00%
             |             
            
                14.40
             |           
            
                14.40
             |               
            
                14.30
             |                           
            
                14.40
             | 
            
                14.40
             |                     
            
                11.69
             |                                 
            
                18,440
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2012
             | 
            
                0.00 / 0.00%
             |             
            
                14.50
             |           
            
                14.60
             |               
            
                14.40
             |                           
            
                14.40
             | 
            
                14.40
             |                     
            
                11.69
             |                                 
            
                2,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2012
             | 
            
                -0.10 / -0.69%
             |             
            
                14.40
             |           
            
                14.60
             |               
            
                14.30
             |                           
            
                14.40
             | 
            
                14.40
             |                     
            
                11.69
             |                                 
            
                19,590
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2012
             | 
            
                +0.10 / +0.69%
             |             
            
                14.40
             |           
            
                14.50
             |               
            
                14.20
             |                           
            
                14.50
             | 
            
                14.50
             |                     
            
                11.77
             |                                 
            
                21,560
             |  
            
                 
             |                                                              
             
    
         
    
    
 |