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                    Closing price on 6/28/2022
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                    | Open | 12.20 |  
                    | High | 12.90 |  
                    | Low | 9.70 |  
                    | Volume | 28,600 |  
                    | Split-adjusted Price | 7.27 |  
                
             | 
 |  DSC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/28/2022 | +1.60 / +14.16% | 12.20 | 12.90 | 9.70 | 12.90 | 11.40 | 7.27 | 28,600 |   |  
            | 6/27/2022 | +0.60 / +4.65% | 14.80 | 14.80 | 11.00 | 13.50 | 11.30 | 7.61 | 8,500 |   |  			
            | 6/24/2022 | +1.60 / +14.16% | 12.90 | 12.90 | 12.90 | 12.90 | 12.90 | 7.27 | 22,200 |   |  
            | 6/23/2022 | +1.00 / +7.81% | 10.90 | 14.10 | 10.90 | 13.80 | 11.30 | 7.78 | 17,100 |   |  			
            | 6/22/2022 | +1.00 / +8.47% | 12.80 | 12.80 | 12.50 | 12.80 | 12.80 | 7.22 | 11,300 |   |  
            | 6/21/2022 | +0.70 / +6.31% | 12.00 | 12.50 | 11.10 | 11.80 | 11.80 | 6.65 | 3,900 |   |  			
            | 6/20/2022 | -1.60 / -12.50% | 10.90 | 12.80 | 10.90 | 11.20 | 11.10 | 6.31 | 13,200 |   |  
            | 6/17/2022 | -1.20 / -9.38% | 12.50 | 13.00 | 11.60 | 11.60 | 12.80 | 6.54 | 8,100 |   |  			
            | 6/16/2022 | +0.90 / +7.44% | 13.00 | 13.00 | 11.90 | 13.00 | 12.80 | 7.33 | 5,500 |   |  
            | 6/15/2022 | +0.40 / +3.20% | 11.90 | 12.90 | 11.90 | 12.90 | 12.10 | 7.27 | 3,800 |   |  			
            | 6/14/2022 | 0.00 / 0.00% | 12.10 | 12.80 | 12.00 | 12.80 | 12.50 | 7.22 | 13,300 |   |  
            | 6/13/2022 | -1.90 / -13.57% | 12.50 | 13.00 | 12.10 | 12.10 | 12.80 | 6.82 | 9,800 |   |  			
            | 6/10/2022 | 0.00 / 0.00% | 14.00 | 14.00 | 14.00 | 14.00 | 14.00 | 7.89 | 0 |   |  
            | 6/9/2022 | +0.40 / +2.94% | 14.50 | 14.50 | 13.80 | 14.00 | 14.00 | 7.89 | 2,700 |   |  			
            | 6/8/2022 | +1.10 / +8.73% | 13.50 | 13.70 | 13.50 | 13.70 | 13.60 | 7.72 | 4,800 |   |  
            | 6/7/2022 | +0.70 / +5.60% | 11.80 | 13.60 | 11.80 | 13.20 | 12.60 | 7.44 | 9,400 |   |  			
            | 6/6/2022 | -0.50 / -3.70% | 12.30 | 13.70 | 12.20 | 13.00 | 12.50 | 7.33 | 1,200 |   |  
            | 6/3/2022 | -0.80 / -5.97% | 12.10 | 13.60 | 12.10 | 12.60 | 13.50 | 7.10 | 5,800 |   |  			
            | 6/2/2022 | +0.20 / +1.52% | 13.20 | 13.40 | 13.20 | 13.40 | 13.40 | 7.56 | 600 |   |  
            | 6/1/2022 | -0.20 / -1.47% | 12.20 | 13.50 | 12.20 | 13.40 | 13.20 | 7.56 | 2,600 |   |  			
            | 5/31/2022 | +1.30 / +10.57% | 13.00 | 13.80 | 13.00 | 13.60 | 13.60 | 7.67 | 500 |   |  
            | 5/30/2022 | -0.40 / -2.86% | 11.90 | 13.60 | 11.90 | 13.60 | 12.30 | 7.67 | 12,700 |   |  			
            | 5/27/2022 | -0.20 / -1.41% | 14.00 | 14.00 | 14.00 | 14.00 | 14.00 | 7.89 | 1,400 |   |  
            | 5/26/2022 | +0.20 / +1.43% | 14.20 | 14.20 | 14.20 | 14.20 | 14.20 | 8.01 | 400 |   |  			
            | 5/25/2022 | +1.50 / +11.11% | 12.80 | 15.00 | 12.00 | 15.00 | 14.00 | 8.46 | 18,000 |   |  
            | 5/24/2022 | 0.00 / 0.00% | 13.50 | 13.50 | 13.50 | 13.50 | 13.50 | 7.61 | 500 |   |  			
            | 5/23/2022 | -0.20 / -1.46% | 13.50 | 13.50 | 13.40 | 13.50 | 13.50 | 7.61 | 1,200 |   |  
            | 5/20/2022 | -0.10 / -0.75% | 12.60 | 14.00 | 12.60 | 13.20 | 13.70 | 7.44 | 20,100 |   |  			
            | 5/19/2022 | -0.20 / -1.56% | 13.30 | 13.80 | 12.60 | 12.60 | 13.30 | 7.10 | 4,500 |   |  
            | 5/18/2022 | +1.50 / +12.71% | 12.20 | 13.30 | 12.00 | 13.30 | 12.80 | 7.50 | 8,100 |   |  |