|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           1993 
            |  
         
           10.00 
            |  
         
           12.875 
            |  
         
           2.875 
            |  
         
           28.75% 
            |  
      
|  
           1994 
            |  
         
           12.875 
            |  
         
           13.25 
            |  
         
           0.375 
            |  
         
           2.91% 
            |  
      
|  
           1995 
            |  
         
           13.25 
            |  
         
           15.00 
            |  
         
           1.75 
            |  
         
           13.21% 
            |  
      
|  
           1996 
            |  
         
           15.00 
            |  
         
           18.50 
            |  
         
           3.50 
            |  
         
           23.33% 
            |  
      
|  
           1997 
            |  
         
           18.50 
            |  
         
           20.75 
            |  
         
           2.25 
            |  
         
           12.16% 
            |  
      
|  
           1998 
            |  
         
           20.75 
            |  
         
           16.625 
            |  
         
           -4.125 
            |  
         
           -19.88% 
            |  
      
|  
           1999 
            |  
         
           16.625 
            |  
         
           8.4375 
            |  
         
           -8.1875 
            |  
         
           -49.25% 
            |  
      
|  
           2000 
            |  
         
           8.4375 
            |  
         
           3.5625 
            |  
         
           -4.875 
            |  
         
           -57.78% 
            |  
      
|  
           2001 
            |  
         
           3.5625 
            |  
         
           6.35 
            |  
         
           2.7875 
            |  
         
           78.25% 
            |  
      
|  
           2002 
            |  
         
           6.35 
            |  
         
           6.72 
            |  
         
           0.37 
            |  
         
           5.83% 
            |  
      
|  
           2003 
            |  
         
           6.72 
            |  
         
           14.74 
            |  
         
           8.02 
            |  
         
           119.35% 
            |  
      
|  
           2004 
            |  
         
           14.74 
            |  
         
           19.91 
            |  
         
           5.17 
            |  
         
           35.07% 
            |  
      
|  
           2005 
            |  
         
           19.91 
            |  
         
           21.03 
            |  
         
           1.12 
            |  
         
           5.63% 
            |  
      
|  
           2006 
            |  
         
           21.03 
            |  
         
           27.31 
            |  
         
           6.28 
            |  
         
           29.86% 
            |  
      
|  
           2007 
            |  
         
           27.31 
            |  
         
           25.05 
            |  
         
           -2.26 
              
           |  
         
           -8.28% 
                
           |  
      
|  
           2008 
            |  
         
           25.05 
            |  
         
           20.28 
            |  
         
           -4.77 
            |  
         
           -19.04% 
            |  
      
|  
           2009 
            |  
         
           20.28 
            |  
         
           26.75 
            |  
         
           6.47 
            |  
         
           31.90% 
            |  
      
|  
           2010 
            |  
         
           26.75 
            |  
         
           28.08 
            |  
         
           1.33 
            |  
         
           4.97% 
            |  
      
|  
           2011 
            |  
         
           28.08 
            |  
         
           30.86 
            |  
         
           2.78 
                
           |  
         
           9.90% 
            |  
      
|  
           2012 
            |  
         
           30.86 
            |  
         
           35.19 
            |  
         
           4.33 
                
           |  
         
           14.03% 
            |  
      
|  
           2013 
            |  
         
           35.19 
            |  
         
           35.39 
            |  
         
           0.20 
                
           |  
         
           0.57% 
            |  
      
|  
           2014 
            |  
         
           35.39 
            |  
         
           43.17 
            |  
         
           7.78 
            |  
         
           21.98% 
            |  
      
|  
           2015 
            |  
        
           43.17 
            |  
         
           43.14 
            |  
         
           -0.03 
            |  
         
           -0.07% 
            |  
      
|  
           2016 
            |  
         
           43.14 
            |  
         
           46.98 
            |  
         
           3.84 
            |  
         
           8.90% 
            |  
      
|  
           2017 
            |  
        
           46.98 
            |  
         
           43.55 
            |  
         
           -3.43 
            |  
         
           -7.30% 
            |  
      
|  
           2018 
            |  
        
           43.55 
            |  
         
           41.68 
            |  
         
           -1.87 
            |  
         
           -4.29% 
            |  
      
|  
           2019 
            |  
        
           41.68 
            |  
         
           44.77 
            |  
         
           3.09 
            |  
         
           7.41% 
            |  
      
|  
           2020 
            |  
        
           44.77 
            |  
         
           38.91 
            |  
         
           -5.86 
            |  
         
           -13.09% 
            |  
      
|  
           2021 
            |  
        
           38.91 
            |  
         
           34.14 
            |  
         
           -4.77 
            |  
         
           -12.26% 
            |  
      
|  
           2022 
            |  
        
           34.14 
            |  
         
           35.53 
            |  
         
           1.39 
            |  
         
           4.07% 
            |  
      
|  
           2023 
            |  
        
           35.53 
            |  
         
           32.12 
            |  
         
           -3.41 
            |  
         
           -9.60% 
            |  
      
|  
           2024 
            |  
        
           32.12 
            |  
         
           34.55 
            |  
         
           2.43 
            |  
         
           7.57% 
            |