|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           2008 
            |  
         
           8.99 
            |  
         
           10.56 
            |  
         
           1.57 
            |  
         
           17.46% 
            |  
      
|  
           2009 
            |  
         
           10.56 
            |  
         
           26.80 
            |  
         
           16.24 
            |  
         
           153.79% 
            |  
      
|  
           2010 
            |  
         
           26.80 
            |  
         
           24.91 
            |  
         
           -1.89 
            |  
         
           -7.05% 
            |  
      
|  
           2011 
            |  
         
           24.91 
            |  
         
           17.66 
            |  
         
           -7.25 
            |  
         
           -29.10% 
            |  
      
|  
           2012 
            |  
         
           17.66 
            |  
         
           52.83 
            |  
         
           35.17 
            |  
         
           199.15% 
            |  
      
|  
           2013 
            |  
         
           52.83 
            |  
         
           102.89 
            |  
         
           50.06 
            |  
         
           94.76% 
            |  
      
|  
           2014 
            |  
         
           102.89 
            |  
         
           66.31 
            |  
         
           -36.58 
            |  
         
           -35.55% 
            |  
      
|  
           2015 
            |  
        
           66.31 
            |  
         
           17.36 
            |  
         
           -48.95 
            |  
         
           -73.82% 
            |  
      
|  
           2016 
            |  
        
           17.36 
            |  
         
           15.74 
            |  
         
           -1.62 
            |  
         
           -9.33% 
            |  
      
|  
           2017 
            |  
         
           15.74 
            |  
         
           31.39 
            |  
         
           15.65 
            |  
         
           99.43% 
            |  
      
|  
           2018 
            |  
        
           31.39 
            |  
         
           9.52 
            |  
         
           -21.87 
            |  
         
           -69.67% 
            |  
      
|  
           2019 
            |  
        
           9.52 
            |  
         
           9.77 
            |  
         
           0.25 
            |  
         
           2.63% 
            |  
      
|  
           2020 
            |  
        
           9.77 
            |  
         
           30.74 
            |  
         
           20.97 
            |  
         
           214.64% 
            |  
      
|  
           2021 
            |  
        
           30.74 
            |  
         
           17.07 
            |  
         
           -13.67 
            |  
         
           -44.47% 
            |  
      
|  
           2022 
            |  
        
           17.07 
            |  
         
           5.62 
            |  
         
           -11.45 
            |  
         
           -67.08% 
            |  
      
|  
           2023 
            |  
        
           5.62 
            |  
         
           3.90 
            |  
         
           -1.72 
            |  
         
           -30.60% 
            |  
      
|  
           2024 
            |  
        
           3.90 
            |  
         
           3.00* 
            |  
         
           -0.90 
            |  
         
           -23.08% 
            |