|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           1998 
            |  
         
           15.00 
            |  
         
           11.375 
            |  
         
           -3.625 
            |  
         
           -24.17% 
            |  
      
|  
           1999 
            |  
         
           11.375 
            |  
         
           27.5625 
            |  
         
           16.1875 
            |  
         
           142.31% 
            |  
      
|  
           2000 
            |  
         
           27.5625 
            |  
         
           48.50* 
            |  
         
           20.9375 
            |  
         
           75.96% 
            |  
      
|  
           2001 
            |  
         
           24.25 
            |  
         
           36.10 
              
           |  
         
           11.85 
            |  
         
           48.87% 
            |  
      
|  
           2002 
            |  
         
           36.10 
            |  
         
           30.51 
              
           |  
         
           -5.59 
            |  
         
           -15.48% 
            |  
      
|  
           2003 
            |  
         
           30.51 
            |  
         
           42.53 
            |  
         
           12.02 
            |  
         
           39.40% 
            |  
      
|  
           2004 
            |  
         
           42.53 
            |  
         
           60.72 
              
           |  
         
           18.19 
            |  
         
           42.77% 
            |  
      
|  
           2005 
            |  
         
           60.72 
            |  
         
           93.54* 
            |  
         
           32.82 
            |  
         
           54.05% 
            |  
      
|  
           2006 
            |  
         
           46.77 
            |  
         
           57.20* 
              
           |  
         
           10.43 
            |  
         
           22.30% 
            |  
      
|  
           2007 
            |  
         
           28.60 
            |  
         
           36.64 
            |  
         
           8.04 
            |  
         
           28.11% 
            |  
      
|  
           2008 
            |  
         
           36.64 
            |  
         
           15.58 
            |  
         
           -21.06 
            |  
         
           -57.48% 
            |  
      
|  
           2009 
            |  
         
           15.58 
            |  
         
           17.11 
            |  
         
           1.53 
            |  
         
           9.82% 
            |  
      
|  
           2010 
            |  
         
           17.11 
            |  
         
           18.55 
            |  
         
           1.44 
            |  
         
           8.42% 
            |  
      
|  
           2011 
            |  
         
           18.55 
            |  
         
           7.78 
            |  
         
           -10.77 
            |  
         
           -58.06% 
            |  
      
|  
           2012 
            |  
         
           7.78 
            |  
         
           7.54 
            |  
         
           -0.24 
            |  
         
           -3.08% 
            |  
      
|  
           2013 
            |  
         
           7.54 
            |  
         
           13.69 
            |  
         
           6.15 
            |  
         
           81.56% 
            |  
      
|  
           2014 
            |  
         
           13.69 
            |  
         
           13.43 
            |  
         
           -0.26 
            |  
         
           -1.90% 
            |  
      
|  
           2015 
            |  
        
           13.43 
            |  
         
           15.07 
            |  
         
           1.64 
            |  
         
           12.21% 
            |  
      
|  
           2016 
            |  
        
           15.07 
            |  
         
           24.77 
            |  
         
           9.70 
            |  
         
           64.37% 
            |  
      
|  
           2017 
            |  
        
           24.77 
            |  
         
           33.64 
            |  
         
           8.87 
            |  
         
           35.81% 
            |  
      
|  
           2018 
            |  
         
           33.64 
            |  
         
           31.28 
            |  
         
           -2.36 
            |  
         
           -7.02% 
            |  
      
|  
           2019 
            |  
         
           31.28 
            |  
         
           47.16 
            |  
         
           15.88 
            |  
         
           50.77% 
            |  
      
|  
           2020 
            |  
         
           47.16 
            |  
         
           97.19 
            |  
         
           50.03 
            |  
         
           106.09% 
            |  
      
|  
           2021 
            |  
         
           97.19 
            |  
         
           82.48 
            |  
         
           -14.71 
            |  
         
           -15.14% 
            |  
      
|  
           2022 
            |  
         
           82.48 
            |  
         
           62.25 
            |  
         
           -20.23 
            |  
         
           -24.53% 
            |  
      
|  
           2023 
            |  
         
           62.25 
            |  
         
           95.06 
            |  
         
           32.81 
            |  
         
           52.71% 
            |  
      
|  
           2024 
            |  
         
           95.06 
            |  
         
           82.35 
            |  
         
           -12.71 
            |  
         
           -13.37% 
            |