| 
    
        
            | 
                    Closing price on 1/4/2013
                 |  |  
    
        |           
                
                    | Open | 8.80 |  
                    | High | 8.90 |  
                    | Low | 8.40 |  
                    | Volume | 14,900 |  
                    | Split-adjusted Price | 5.73 |  
                
             | 
 |  POT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/4/2013 | 0.00 / 0.00% | 8.80 | 8.90 | 8.40 | 8.80 | 8.63 | 5.73 | 14,900 |   |  
            | 1/3/2013 | -0.60 / -6.38% | 9.00 | 9.10 | 8.80 | 8.80 | 8.86 | 5.73 | 46,900 |   |  			
            | 1/2/2013 | +0.40 / +4.44% | 8.80 | 9.40 | 8.80 | 9.40 | 9.15 | 6.12 | 20,100 |   |  
            | 12/28/2012 | +0.30 / +3.45% | 8.50 | 9.20 | 8.50 | 9.00 | 8.88 | 5.86 | 57,500 |   |  			
            | 12/27/2012 | 0.00 / 0.00% | 8.60 | 8.80 | 8.60 | 8.70 | 8.67 | 5.66 | 86,500 |   |  
            | 12/26/2012 | -0.10 / -1.14% | 8.40 | 8.80 | 8.10 | 8.70 | 8.52 | 5.66 | 42,500 |   |  			
            | 12/25/2012 | -0.20 / -2.22% | 9.00 | 9.00 | 8.50 | 8.80 | 8.74 | 5.73 | 34,140 |   |  
            | 12/24/2012 | +0.30 / +3.45% | 9.30 | 9.30 | 8.70 | 9.00 | 9.08 | 5.86 | 137,800 |   |  			
            | 12/21/2012 | +0.50 / +6.10% | 8.70 | 8.70 | 8.70 | 8.70 | 8.70 | 5.66 | 153,100 |   |  
            | 12/20/2012 | +0.50 / +6.49% | 8.20 | 8.20 | 8.20 | 8.20 | 8.20 | 5.34 | 8,900 |   |  			
            | 12/19/2012 | +0.50 / +6.94% | 7.40 | 7.70 | 7.30 | 7.70 | 7.62 | 5.01 | 61,000 |   |  
            | 12/18/2012 | -0.10 / -1.37% | 7.40 | 7.40 | 7.20 | 7.20 | 7.22 | 4.69 | 5,000 |   |  			
            | 12/17/2012 | -0.30 / -3.95% | 7.20 | 7.50 | 7.20 | 7.30 | 7.28 | 4.75 | 4,100 |   |  
            | 12/14/2012 | -0.10 / -1.30% | 7.60 | 7.60 | 7.40 | 7.60 | 7.52 | 4.95 | 12,000 |   |  			
            | 12/13/2012 | 0.00 / 0.00% | 7.50 | 7.70 | 7.50 | 7.70 | 7.51 | 5.01 | 11,700 |   |  
            | 12/12/2012 | -0.10 / -1.28% | 7.50 | 7.90 | 7.30 | 7.70 | 7.69 | 5.01 | 58,200 |   |  			
            | 12/11/2012 | 0.00 / 0.00% | 7.50 | 7.80 | 7.50 | 7.80 | 7.54 | 5.08 | 1,432 |   |  
            | 12/10/2012 | +0.50 / +6.85% | 7.30 | 7.80 | 7.30 | 7.80 | 7.69 | 5.08 | 38,929 |   |  			
            | 12/7/2012 | +0.30 / +4.29% | 7.10 | 7.30 | 7.00 | 7.30 | 7.14 | 4.75 | 55,100 |   |  
            | 12/6/2012 | -0.10 / -1.41% | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 4.56 | 6,900 |   |  			
            | 12/5/2012 | 0.00 / 0.00% | 7.10 | 7.10 | 7.10 | 7.10 | 7.10 | 4.62 | 0 |   |  
            | 12/4/2012 | +0.10 / +1.43% | 7.00 | 7.10 | 7.00 | 7.10 | 7.00 | 4.62 | 3,200 |   |  			
            | 12/3/2012 | +0.20 / +2.94% | 6.70 | 7.00 | 6.70 | 7.00 | 6.73 | 4.56 | 1,100 |   |  
            | 11/30/2012 | -0.40 / -5.56% | 7.20 | 7.20 | 6.70 | 6.80 | 6.91 | 4.43 | 3,600 |   |  			
            | 11/29/2012 | 0.00 / 0.00% | 7.10 | 7.20 | 6.70 | 7.20 | 7.02 | 4.69 | 26,000 |   |  
            | 11/28/2012 | +0.10 / +1.41% | 7.20 | 7.20 | 7.00 | 7.20 | 7.08 | 4.69 | 12,700 |   |  			
            | 11/27/2012 | -0.20 / -2.74% | 7.20 | 7.30 | 7.10 | 7.10 | 7.17 | 4.62 | 1,800 |   |  
            | 11/26/2012 | +0.10 / +1.39% | 7.10 | 7.30 | 7.10 | 7.30 | 7.12 | 4.75 | 63,100 |   |  			
            | 11/23/2012 | -0.10 / -1.37% | 7.10 | 7.20 | 7.10 | 7.20 | 7.15 | 4.69 | 6,000 |   |  
            | 11/22/2012 | +0.30 / +4.29% | 7.00 | 7.30 | 7.00 | 7.30 | 7.03 | 4.75 | 1,100 |   |  |