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            | 
                    Closing price on 2/11/2014
                 |  |  
    
        |           
                
                    | Open | 7.00 |  
                    | High | 7.20 |  
                    | Low | 6.90 |  
                    | Volume | 71,105 |  
                    | Split-adjusted Price | 7.10 |  
                
             | 
 |  PSI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/11/2014 | +0.20 / +2.90% | 7.00 | 7.20 | 6.90 | 7.10 | 7.10 | 7.10 | 71,105 |   |  
            | 2/10/2014 | -0.10 / -1.43% | 7.00 | 7.00 | 6.70 | 6.90 | 6.90 | 6.90 | 155,000 |   |  			
            | 2/7/2014 | -0.10 / -1.41% | 7.10 | 7.20 | 7.00 | 7.00 | 7.00 | 7.00 | 51,975 |   |  
            | 2/6/2014 | +0.10 / +1.43% | 7.70 | 7.70 | 7.00 | 7.10 | 7.10 | 7.10 | 3,600 |   |  			
            | 1/27/2014 | +0.20 / +2.94% | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 10,200 |   |  
            | 1/24/2014 | 0.00 / 0.00% | 7.00 | 7.00 | 6.70 | 6.80 | 6.80 | 6.80 | 6,500 |   |  			
            | 1/23/2014 | +0.10 / +1.49% | 6.90 | 6.90 | 6.80 | 6.80 | 6.80 | 6.80 | 14,300 |   |  
            | 1/22/2014 | +0.20 / +3.08% | 6.80 | 7.00 | 6.70 | 6.70 | 6.70 | 6.70 | 221,010 |   |  			
            | 1/21/2014 | -0.10 / -1.52% | 6.50 | 6.50 | 6.50 | 6.50 | 6.50 | 6.50 | 9,400 |   |  
            | 1/20/2014 | -0.20 / -2.94% | 6.60 | 6.80 | 6.60 | 6.60 | 6.60 | 6.60 | 2,500 |   |  			
            | 1/17/2014 | 0.00 / 0.00% | 6.80 | 6.80 | 6.80 | 6.80 | 6.80 | 6.80 | 55,000 |   |  
            | 1/16/2014 | -0.20 / -2.86% | 6.90 | 7.00 | 6.80 | 6.80 | 6.80 | 6.80 | 37,900 |   |  			
            | 1/15/2014 | +0.30 / +4.48% | 7.00 | 7.00 | 6.70 | 7.00 | 7.00 | 7.00 | 29,600 |   |  
            | 1/14/2014 | -0.20 / -2.90% | 6.80 | 7.00 | 6.60 | 6.70 | 6.70 | 6.70 | 57,345 |   |  			
            | 1/13/2014 | +0.20 / +2.99% | 6.80 | 7.00 | 6.70 | 6.90 | 6.90 | 6.90 | 58,500 |   |  
            | 1/10/2014 | -0.50 / -6.94% | 6.80 | 7.20 | 6.70 | 6.70 | 6.70 | 6.70 | 5,755 |   |  			
            | 1/9/2014 | +0.60 / +9.09% | 6.80 | 7.20 | 6.60 | 7.20 | 7.20 | 7.20 | 200,775 |   |  
            | 1/8/2014 | +0.10 / +1.54% | 6.50 | 6.60 | 6.50 | 6.60 | 6.60 | 6.60 | 258,925 |   |  			
            | 1/7/2014 | +0.10 / +1.56% | 6.50 | 6.50 | 6.50 | 6.50 | 6.50 | 6.50 | 7,500 |   |  
            | 1/6/2014 | 0.00 / 0.00% | 6.40 | 6.50 | 6.10 | 6.40 | 6.40 | 6.40 | 120,600 |   |  			
            | 1/3/2014 | 0.00 / 0.00% | 6.30 | 6.40 | 6.10 | 6.40 | 6.40 | 6.40 | 138,175 |   |  
            | 1/2/2014 | +0.10 / +1.59% | 6.20 | 6.40 | 6.20 | 6.40 | 6.40 | 6.40 | 200 |   |  			
            | 12/31/2013 | +0.30 / +5.00% | 6.10 | 6.30 | 6.10 | 6.30 | 6.30 | 6.30 | 32,475 |   |  
            | 12/30/2013 | -0.30 / -4.76% | 6.30 | 6.30 | 6.00 | 6.00 | 6.00 | 6.00 | 269,000 |   |  			
            | 12/27/2013 | -0.10 / -1.56% | 6.50 | 6.50 | 6.30 | 6.30 | 6.30 | 6.30 | 53,300 |   |  
            | 12/26/2013 | 0.00 / 0.00% | 6.40 | 6.40 | 6.40 | 6.40 | 6.40 | 6.40 | 46,400 |   |  			
            | 12/25/2013 | -0.20 / -3.03% | 6.40 | 6.50 | 6.30 | 6.40 | 6.40 | 6.40 | 173,650 |   |  
            | 12/24/2013 | -0.10 / -1.49% | 6.40 | 6.60 | 6.40 | 6.60 | 6.60 | 6.60 | 11,200 |   |  			
            | 12/23/2013 | +0.10 / +1.52% | 6.60 | 6.70 | 6.30 | 6.70 | 6.70 | 6.70 | 221,700 |   |  
            | 12/20/2013 | 0.00 / 0.00% | 6.60 | 6.60 | 6.40 | 6.60 | 6.60 | 6.60 | 104,630 |   |  |