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                    Closing price on 11/4/2013
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                    | Open | 9.70 |  
                    | High | 10.00 |  
                    | Low | 9.60 |  
                    | Volume | 1,599,300 |  
                    | Split-adjusted Price | 3.50 |  
                
             | 
 |  PVT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/4/2013 | +0.10 / +1.03% | 9.70 | 10.00 | 9.60 | 9.80 | 9.80 | 3.50 | 1,599,300 |   |  
            | 11/1/2013 | +0.20 / +2.11% | 9.60 | 9.70 | 9.50 | 9.70 | 9.70 | 3.47 | 1,468,480 |   |  			
            | 10/31/2013 | -0.10 / -1.04% | 9.60 | 9.70 | 9.50 | 9.50 | 9.50 | 3.40 | 752,090 |   |  
            | 10/30/2013 | -0.10 / -1.03% | 9.60 | 9.80 | 9.50 | 9.60 | 9.60 | 3.43 | 1,190,380 |   |  			
            | 10/29/2013 | +0.20 / +2.11% | 9.50 | 9.70 | 9.30 | 9.70 | 9.70 | 3.47 | 1,467,710 |   |  
            | 10/28/2013 | +0.20 / +2.15% | 9.50 | 9.80 | 9.40 | 9.50 | 9.50 | 3.40 | 2,660,170 |   |  			
            | 10/25/2013 | -0.50 / -5.10% | 9.70 | 9.90 | 9.30 | 9.30 | 9.30 | 3.32 | 4,096,890 |   |  
            | 10/24/2013 | -0.70 / -6.67% | 10.20 | 10.30 | 9.80 | 9.80 | 9.80 | 3.50 | 7,963,870 |   |  			
            | 10/23/2013 | +0.40 / +3.96% | 10.20 | 10.70 | 10.20 | 10.50 | 10.50 | 3.75 | 2,969,860 |   |  
            | 10/22/2013 | -0.10 / -0.98% | 10.20 | 10.30 | 9.90 | 10.10 | 10.10 | 3.61 | 2,242,090 |   |  			
            | 10/21/2013 | +0.50 / +5.15% | 9.60 | 10.30 | 9.60 | 10.20 | 10.20 | 3.65 | 3,889,830 |   |  
            | 10/18/2013 | +0.10 / +1.04% | 9.50 | 9.80 | 9.40 | 9.70 | 9.70 | 3.47 | 2,298,700 |   |  			
            | 10/17/2013 | 0.00 / 0.00% | 9.70 | 9.80 | 9.40 | 9.60 | 9.60 | 3.43 | 2,866,430 |   |  
            | 10/16/2013 | +0.40 / +4.35% | 9.40 | 9.80 | 9.30 | 9.60 | 9.60 | 3.43 | 3,894,300 |   |  			
            | 10/15/2013 | +0.60 / +6.98% | 8.60 | 9.20 | 8.60 | 9.20 | 9.20 | 3.29 | 5,347,520 |   |  
            | 10/14/2013 | 0.00 / 0.00% | 8.60 | 8.80 | 8.50 | 8.60 | 8.60 | 3.07 | 1,076,990 |   |  			
            | 10/11/2013 | 0.00 / 0.00% | 8.80 | 8.80 | 8.50 | 8.60 | 8.60 | 3.07 | 1,428,100 |   |  
            | 10/10/2013 | -0.20 / -2.27% | 8.90 | 8.90 | 8.50 | 8.60 | 8.60 | 3.07 | 2,619,540 |   |  			
            | 10/9/2013 | +0.10 / +1.15% | 8.60 | 9.00 | 8.50 | 8.80 | 8.80 | 3.14 | 2,011,390 |   |  
            | 10/8/2013 | -0.30 / -3.33% | 8.90 | 9.00 | 8.50 | 8.70 | 8.70 | 3.11 | 3,814,140 |   |  			
            | 10/7/2013 | -0.10 / -1.10% | 9.20 | 9.20 | 8.90 | 9.00 | 9.00 | 3.22 | 2,417,750 |   |  
            | 10/4/2013 | +0.10 / +1.11% | 8.90 | 9.20 | 8.90 | 9.10 | 9.10 | 3.25 | 1,750,100 |   |  			
            | 10/3/2013 | -0.20 / -2.17% | 9.10 | 9.20 | 8.80 | 9.00 | 9.00 | 3.22 | 2,537,910 |   |  
            | 10/2/2013 | 0.00 / 0.00% | 9.30 | 9.40 | 9.10 | 9.20 | 9.20 | 3.29 | 2,477,640 |   |  			
            | 10/1/2013 | +0.20 / +2.22% | 9.30 | 9.60 | 9.00 | 9.20 | 9.20 | 3.29 | 4,483,690 |   |  
            | 9/30/2013 | +0.50 / +5.88% | 8.50 | 9.00 | 8.40 | 9.00 | 9.00 | 3.22 | 3,222,490 |   |  			
            | 9/27/2013 | 0.00 / 0.00% | 8.60 | 8.80 | 8.40 | 8.50 | 8.50 | 3.04 | 2,218,270 |   |  
            | 9/26/2013 | +0.20 / +2.41% | 8.30 | 8.60 | 8.20 | 8.50 | 8.50 | 3.04 | 2,828,770 |   |  			
            | 9/25/2013 | -0.40 / -4.60% | 8.70 | 9.00 | 8.20 | 8.30 | 8.30 | 2.97 | 3,804,690 |   |  
            | 9/24/2013 | +0.50 / +6.10% | 8.20 | 8.70 | 8.20 | 8.70 | 8.70 | 3.11 | 3,749,990 |   |  |  |