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            | 
                    Closing price on 11/14/2019
                 |  |  
    
        |           
                
                    | Open | 13.10 |  
                    | High | 13.70 |  
                    | Low | 12.50 |  
                    | Volume | 11,980 |  
                    | Split-adjusted Price | 13.70 |  
                
             | 
 |  STG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/14/2019 | +0.60 / +4.58% | 13.10 | 13.70 | 12.50 | 13.70 | 13.44 | 13.70 | 11,980 |   |  
            | 11/13/2019 | -0.15 / -1.13% | 13.10 | 13.10 | 13.10 | 13.10 | 13.10 | 13.10 | 20 |   |  			
            | 11/12/2019 | +0.70 / +5.58% | 13.30 | 13.30 | 11.85 | 13.25 | 12.79 | 13.25 | 860 |   |  
            | 11/11/2019 | -0.75 / -5.64% | 12.80 | 13.30 | 12.55 | 12.55 | 12.94 | 12.55 | 4,560 |   |  			
            | 11/8/2019 | 0.00 / 0.00% | 13.30 | 13.30 | 13.30 | 13.30 | 13.30 | 13.30 | 0 |   |  
            | 11/7/2019 | 0.00 / 0.00% | 12.70 | 13.30 | 12.70 | 13.30 | 12.94 | 13.30 | 2,550 |   |  			
            | 11/6/2019 | 0.00 / 0.00% | 12.45 | 13.30 | 12.45 | 13.30 | 12.64 | 13.30 | 4,430 |   |  
            | 11/5/2019 | 0.00 / 0.00% | 13.50 | 13.50 | 12.45 | 13.30 | 12.48 | 13.30 | 6,730 |   |  			
            | 11/4/2019 | 0.00 / 0.00% | 13.25 | 13.30 | 13.25 | 13.30 | 13.28 | 13.30 | 3,060 |   |  
            | 11/1/2019 | -0.10 / -0.75% | 13.30 | 13.30 | 13.30 | 13.30 | 13.30 | 13.30 | 510 |   |  			
            | 10/31/2019 | +0.20 / +1.52% | 13.20 | 13.45 | 12.80 | 13.40 | 13.12 | 13.40 | 4,420 |   |  
            | 10/30/2019 | -0.15 / -1.12% | 13.20 | 13.30 | 12.80 | 13.20 | 13.13 | 13.20 | 5,240 |   |  			
            | 10/29/2019 | +0.35 / +2.69% | 13.40 | 13.50 | 12.10 | 13.35 | 12.23 | 13.35 | 1,880 |   |  
            | 10/28/2019 | -0.50 / -3.70% | 13.45 | 13.45 | 13.00 | 13.00 | 13.23 | 13.00 | 540 |   |  			
            | 10/25/2019 | 0.00 / 0.00% | 13.30 | 13.50 | 13.30 | 13.50 | 13.40 | 13.50 | 1,010 |   |  
            | 10/24/2019 | +0.30 / +2.27% | 12.30 | 13.50 | 12.30 | 13.50 | 13.06 | 13.50 | 3,370 |   |  			
            | 10/23/2019 | 0.00 / 0.00% | 13.20 | 13.20 | 13.20 | 13.20 | 13.20 | 13.20 | 2,150 |   |  
            | 10/22/2019 | -0.05 / -0.38% | 13.20 | 13.20 | 13.20 | 13.20 | 13.20 | 13.20 | 200 |   |  			
            | 10/21/2019 | 0.00 / 0.00% | 13.25 | 13.25 | 13.25 | 13.25 | 13.25 | 13.25 | 36,690 |   |  
            | 10/18/2019 | 0.00 / 0.00% | 12.70 | 13.25 | 12.70 | 13.25 | 12.98 | 13.25 | 3,100 |   |  			
            | 10/17/2019 | 0.00 / 0.00% | 12.85 | 13.25 | 12.85 | 13.25 | 13.05 | 13.25 | 5,840 |   |  
            | 10/16/2019 | -0.05 / -0.38% | 13.00 | 13.25 | 13.00 | 13.25 | 13.01 | 13.25 | 2,460 |   |  			
            | 10/15/2019 | 0.00 / 0.00% | 13.30 | 13.30 | 13.30 | 13.30 | 13.30 | 13.30 | 0 |   |  
            | 10/14/2019 | 0.00 / 0.00% | 13.00 | 13.30 | 13.00 | 13.30 | 13.15 | 13.30 | 110 |   |  			
            | 10/11/2019 | -0.30 / -2.21% | 12.75 | 13.30 | 12.75 | 13.30 | 13.03 | 13.30 | 1,020 |   |  
            | 10/10/2019 | +0.60 / +4.62% | 12.80 | 13.60 | 12.80 | 13.60 | 12.81 | 13.60 | 6,790 |   |  			
            | 10/9/2019 | 0.00 / 0.00% | 12.90 | 13.00 | 12.90 | 13.00 | 12.95 | 13.00 | 1,110 |   |  
            | 10/8/2019 | 0.00 / 0.00% | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 0 |   |  			
            | 10/7/2019 | 0.00 / 0.00% | 12.90 | 13.00 | 12.90 | 13.00 | 12.95 | 13.00 | 4,200 |   |  
            | 10/4/2019 | 0.00 / 0.00% | 12.90 | 13.00 | 12.80 | 13.00 | 12.93 | 13.00 | 4,540 |   |  |