| 
                 
                    Closing price on 7/31/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    25.50 | 
                 
                
                    | High | 
                    25.50 | 
                 
                
                    | Low | 
                    25.50 | 
                     
                
                    | Volume | 
                    2,010 | 
                                 
                
                    | Split-adjusted Price | 
                    4.35 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ACC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/31/2013
             | 
            
                +0.40 / +1.59%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                4.35
             |                                 
            
                2,010
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2013
             | 
            
                +0.10 / +0.40%
             |             
            
                25.00
             |           
            
                25.10
             |               
            
                25.00
             |                           
            
                25.10
             | 
            
                25.10
             |                     
            
                4.28
             |                                 
            
                790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2013
             | 
            
                -0.80 / -3.10%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                4.27
             |                                 
            
                500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2013
             | 
            
                -0.20 / -0.77%
             |             
            
                25.70
             |           
            
                25.80
             |               
            
                25.00
             |                           
            
                25.80
             | 
            
                25.80
             |                     
            
                4.40
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2013
             | 
            
                +0.30 / +1.17%
             |             
            
                25.50
             |           
            
                26.00
             |               
            
                25.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                4.44
             |                                 
            
                11,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2013
             | 
            
                -0.70 / -2.65%
             |             
            
                25.80
             |           
            
                25.80
             |               
            
                25.60
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                4.38
             |                                 
            
                5,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2013
             | 
            
                -0.10 / -0.38%
             |             
            
                26.40
             |           
            
                26.40
             |               
            
                26.40
             |                           
            
                26.40
             | 
            
                26.40
             |                     
            
                4.50
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2013
             | 
            
                +0.50 / +1.92%
             |             
            
                26.00
             |           
            
                26.50
             |               
            
                26.00
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                4.52
             |                                 
            
                9,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2013
             | 
            
                -0.50 / -1.89%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                4.44
             |                                 
            
                10,240
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2013
             | 
            
                -0.30 / -1.12%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                4.52
             |                                 
            
                5,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2013
             | 
            
                0.00 / 0.00%
             |             
            
                26.80
             |           
            
                26.80
             |               
            
                26.50
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                4.57
             |                                 
            
                4,430
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2013
             | 
            
                +0.20 / +0.75%
             |             
            
                26.50
             |           
            
                26.80
             |               
            
                26.50
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                4.57
             |                                 
            
                1,690
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2013
             | 
            
                -0.40 / -1.48%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                26.50
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                4.54
             |                                 
            
                3,120
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2013
             | 
            
                +0.40 / +1.50%
             |             
            
                26.60
             |           
            
                27.00
             |               
            
                26.50
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                4.61
             |                                 
            
                7,080
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                26.60
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                4.54
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                27.10
             |           
            
                27.10
             |               
            
                26.60
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                4.54
             |                                 
            
                5,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2013
             | 
            
                +0.10 / +0.38%
             |             
            
                26.50
             |           
            
                26.70
             |               
            
                26.50
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                4.54
             |                                 
            
                1,580
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2013
             | 
            
                +0.10 / +0.38%
             |             
            
                26.50
             |           
            
                26.50
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                4.52
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2013
             | 
            
                +0.10 / +0.38%
             |             
            
                26.40
             |           
            
                26.40
             |               
            
                26.30
             |                           
            
                26.40
             | 
            
                26.40
             |                     
            
                4.50
             |                                 
            
                11,560
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2013
             | 
            
                -0.10 / -0.38%
             |             
            
                26.30
             |           
            
                26.40
             |               
            
                26.30
             |                           
            
                26.30
             | 
            
                26.30
             |                     
            
                4.49
             |                                 
            
                3,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2013
             | 
            
                -0.40 / -1.49%
             |             
            
                26.60
             |           
            
                26.60
             |               
            
                26.40
             |                           
            
                26.40
             | 
            
                26.40
             |                     
            
                4.50
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2013
             | 
            
                -0.20 / -0.74%
             |             
            
                26.70
             |           
            
                26.80
             |               
            
                26.50
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                4.57
             |                                 
            
                2,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2013
             | 
            
                +0.50 / +1.89%
             |             
            
                26.40
             |           
            
                27.00
             |               
            
                26.40
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                4.61
             |                                 
            
                15,590
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2013
             | 
            
                -0.80 / -2.93%
             |             
            
                27.20
             |           
            
                27.20
             |               
            
                26.40
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                4.52
             |                                 
            
                3,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2013
             | 
            
                +0.40 / +1.49%
             |             
            
                27.70
             |           
            
                27.70
             |               
            
                27.30
             |                           
            
                27.30
             | 
            
                27.30
             |                     
            
                4.66
             |                                 
            
                50
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2013
             | 
            
                +0.30 / +1.13%
             |             
            
                25.70
             |           
            
                26.90
             |               
            
                25.70
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                4.59
             |                                 
            
                190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2013
             | 
            
                -0.10 / -0.37%
             |             
            
                26.70
             |           
            
                26.70
             |               
            
                25.50
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                4.54
             |                                 
            
                3,640
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2013
             | 
            
                -0.10 / -0.37%
             |             
            
                27.00
             |           
            
                27.00
             |               
            
                26.60
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                4.56
             |                                 
            
                2,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                26.80
             |           
            
                26.80
             |               
            
                26.60
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                4.57
             |                                 
            
                6,290
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2013
             | 
            
                -0.60 / -2.19%
             |             
            
                27.30
             |           
            
                27.30
             |               
            
                26.80
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                4.57
             |                                 
            
                7,900
             |  
            
                 
             |                                                              
             
    
         
    
    
 |