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                    Closing price on 6/30/2015
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        |           
                
                    | Open | 3.70 |  
                    | High | 3.80 |  
                    | Low | 3.70 |  
                    | Volume | 59,990 |  
                    | Split-adjusted Price | 3.44 |  
                
             | 
 |  VOS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/30/2015 | 0.00 / 0.00% | 3.70 | 3.80 | 3.70 | 3.70 | 3.70 | 3.44 | 59,990 |   |  
            | 6/29/2015 | 0.00 / 0.00% | 3.70 | 3.80 | 3.70 | 3.70 | 3.73 | 3.44 | 49,050 |   |  			
            | 6/26/2015 | -0.10 / -2.63% | 3.80 | 3.80 | 3.70 | 3.70 | 3.74 | 3.44 | 39,820 |   |  
            | 6/25/2015 | 0.00 / 0.00% | 3.80 | 3.80 | 3.70 | 3.80 | 3.80 | 3.54 | 60,790 |   |  			
            | 6/24/2015 | 0.00 / 0.00% | 3.80 | 3.90 | 3.80 | 3.80 | 3.80 | 3.54 | 174,590 |   |  
            | 6/23/2015 | -0.10 / -2.56% | 3.90 | 3.90 | 3.80 | 3.80 | 3.82 | 3.54 | 119,920 |   |  			
            | 6/22/2015 | +0.10 / +2.63% | 3.80 | 4.00 | 3.80 | 3.90 | 3.89 | 3.63 | 192,920 |   |  
            | 6/19/2015 | 0.00 / 0.00% | 3.80 | 3.90 | 3.70 | 3.80 | 3.80 | 3.54 | 135,290 |   |  			
            | 6/18/2015 | 0.00 / 0.00% | 3.70 | 3.80 | 3.70 | 3.80 | 3.78 | 3.54 | 52,340 |   |  
            | 6/17/2015 | 0.00 / 0.00% | 3.70 | 3.80 | 3.70 | 3.80 | 3.75 | 3.54 | 168,260 |   |  			
            | 6/16/2015 | +0.10 / +2.70% | 3.70 | 3.90 | 3.70 | 3.80 | 3.80 | 3.54 | 93,860 |   |  
            | 6/15/2015 | -0.10 / -2.63% | 3.80 | 3.90 | 3.70 | 3.70 | 3.80 | 3.44 | 33,450 |   |  			
            | 6/12/2015 | 0.00 / 0.00% | 3.90 | 3.90 | 3.80 | 3.80 | 3.81 | 3.54 | 150,500 |   |  
            | 6/11/2015 | 0.00 / 0.00% | 3.90 | 3.90 | 3.80 | 3.80 | 3.85 | 3.54 | 273,800 |   |  			
            | 6/10/2015 | 0.00 / 0.00% | 3.80 | 3.90 | 3.70 | 3.80 | 3.77 | 3.54 | 206,440 |   |  
            | 6/9/2015 | -0.10 / -2.56% | 3.90 | 3.90 | 3.80 | 3.80 | 3.82 | 3.54 | 205,720 |   |  			
            | 6/8/2015 | 0.00 / 0.00% | 4.00 | 4.00 | 3.90 | 3.90 | 3.90 | 3.63 | 147,160 |   |  
            | 6/5/2015 | +0.10 / +2.63% | 3.80 | 3.90 | 3.80 | 3.90 | 3.85 | 3.63 | 272,010 |   |  			
            | 6/4/2015 | -0.10 / -2.56% | 3.90 | 3.90 | 3.80 | 3.80 | 3.80 | 3.54 | 107,270 |   |  
            | 6/3/2015 | 0.00 / 0.00% | 3.80 | 3.90 | 3.80 | 3.90 | 3.85 | 3.63 | 31,640 |   |  			
            | 6/2/2015 | +0.10 / +2.63% | 3.80 | 3.90 | 3.80 | 3.90 | 3.81 | 3.63 | 74,220 |   |  
            | 6/1/2015 | -0.10 / -2.56% | 3.80 | 4.00 | 3.80 | 3.80 | 3.84 | 3.54 | 57,060 |   |  			
            | 5/29/2015 | -0.10 / -2.50% | 3.90 | 3.90 | 3.80 | 3.90 | 3.87 | 3.63 | 60,990 |   |  
            | 5/28/2015 | +0.10 / +2.56% | 3.80 | 4.00 | 3.80 | 4.00 | 3.86 | 3.72 | 115,390 |   |  			
            | 5/27/2015 | +0.10 / +2.63% | 3.90 | 3.90 | 3.80 | 3.90 | 3.89 | 3.63 | 163,360 |   |  
            | 5/26/2015 | 0.00 / 0.00% | 3.80 | 3.90 | 3.80 | 3.80 | 3.83 | 3.54 | 145,520 |   |  			
            | 5/25/2015 | -0.20 / -5.00% | 4.00 | 4.00 | 3.80 | 3.80 | 3.82 | 3.54 | 277,340 |   |  
            | 5/22/2015 | +0.10 / +2.56% | 3.90 | 4.00 | 3.90 | 4.00 | 3.91 | 3.72 | 87,930 |   |  			
            | 5/21/2015 | 0.00 / 0.00% | 3.90 | 4.00 | 3.90 | 3.90 | 3.93 | 3.63 | 58,520 |   |  
            | 5/20/2015 | +0.20 / +5.41% | 3.60 | 3.90 | 3.60 | 3.90 | 3.79 | 3.63 | 104,350 |   |  |