|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           1980 
            |  
         
           17.50 
            |  
         
           19.50 
            |  
         
           2.00 
            |  
         
           11.43% 
            |  
      
|  
           1981 
            |  
         
           19.50 
            |  
         
           16.25 
            |  
         
           -3.25 
            |  
         
           -16.67% 
            |  
      
|  
           1982 
            |  
         
           16.25 
            |  
         
           24.875 
            |  
         
           8.625 
            |  
         
           53.08% 
            |  
      
|  
           1983 
            |  
         
           24.875 
            |  
         
           22.50 
            |  
         
           -2.375 
            |  
         
           -9.55% 
            |  
      
|  
           1984 
            |  
         
           22.50 
            |  
         
           20.00 
            |  
         
           -2.50 
            |  
         
           -11.11% 
            |  
      
|  
           1985 
            |  
         
           20.00 
            |  
         
           21.00 
            |  
         
           1.00 
            |  
         
           5.00% 
            |  
      
|  
           1986 
            |  
         
           21.00 
            |  
         
           29.75 
            |  
         
           8.75 
            |  
         
           41.67% 
            |  
      
|  
           1987 
            |  
         
           29.75 
            |  
         
           26.75 
            |  
         
           -3.00 
            |  
         
           -10.08% 
            |  
      
|  
           1988 
            |  
         
           26.75 
            |  
         
           28.25 
            |  
         
           1.50 
            |  
         
           5.61% 
            |  
      
|  
           1989 
            |  
         
           28.25 
            |  
         
           43.25 
            |  
         
           15.00 
            |  
         
           53.10% 
            |  
      
|  
           1990 
            |  
         
           43.25 
            |  
         
           27.375 
            |  
         
           -15.875 
            |  
         
           -36.71% 
            |  
      
|  
           1991 
            |  
         
           27.375 
            |  
         
           44.375 
            |  
         
           17.00 
            |  
         
           62.10% 
            |  
      
|  
           1992 
            |  
         
           44.375 
            |  
         
           89.625* 
            |  
         
           45.25 
            |  
         
           101.97% 
            |  
      
|  
           1993 
            |  
         
           59.75 
            |  
         
           82.50*  |  
         
           22.75 
            |  
         
           38.08% 
            |  
      
|  
           1994 
            |  
         
           41.25 
            |  
         
           27.25 
            |  
         
           -14.00 
            |  
         
           -33.94% 
            |  
      
|  
           1995 
            |  
         
           27.25 
            |  
         
           24.25 
            |  
         
           -3.00 
            |  
         
           -11.01% 
            |  
      
|  
           1996 
            |  
         
           24.25 
            |  
         
           21.125 
            |  
         
           -3.125 
            |  
         
           -12.89% 
            |  
      
|  
           1997 
            |  
         
           21.125 
            |  
         
           19.00 
            |  
         
           -2.125 
            |  
         
           -10.06% 
            |  
      
|  
           1998 
            |  
         
           19.00 
            |  
         
           18.0625 
            |  
         
           -0.9375 
            |  
         
           -4.93% 
            |  
      
|  
           1999 
            |  
         
           18.0625 
            |  
         
           14.3125 
            |  
         
           -3.75 
            |  
         
           -20.76% 
            |  
      
|  
           2000 
            |  
         
           14.3125 
            |  
         
           10.125 
            |  
         
           -4.1875 
            |  
         
           -29.26% 
            |  
      
|  
           2001 
            |  
         
           10.125 
            |  
         
           8.44 
            |  
         
           -1.685 
            |  
         
           -16.64% 
            |  
      
|  
           2002 
            |  
         
           8.44 
            |  
         
           8.06 
            |  
         
           -0.38 
            |  
         
           -4.50% 
            |  
      
|  
           2003 
            |  
         
           8.06 
            |  
         
           17.88 
            |  
         
           9.82 
            |  
         
           121.84% 
            |  
      
|  
           2004 
            |  
         
           17.88 
            |  
         
           26.74 
            |  
         
           8.86 
            |  
         
           49.55% 
            |  
      
|  
           2005 
            |  
         
           26.74 
            |  
         
           27.47 
            |  
         
           0.73 
            |  
         
           2.73% 
            |  
      
|  
           2006 
            |  
         
           27.47 
            |  
         
           21.53 
            |  
         
           -5.94 
            |  
         
           -21.62% 
            |  
      
|  
           2007 
            |  
         
           21.53 
            |  
         
           13.68 
            |  
         
           -7.85 
            |  
         
           -36.46% 
              
           |  
      
|  
           2008 
            |  
         
           13.68 
            |  
         
           1.56 
            |  
         
           -12.12 
            |  
         
           -88.60% 
            |  
      
|  
           2009 
            |  
         
           1.56 
            |  
         
           6.98 
            |  
         
           5.42 
            |  
         
           347.44% 
            |  
      
|  
           2010 
            |  
         
           6.98 
            |  
         
           9.46 
            |  
         
           2.48 
            |  
         
           35.53% 
            |  
      
|  
           2011 
            |  
         
           9.46 
            |  
         
           8.07 
            |  
         
           -1.39 
            |  
         
           -14.69% 
            |  
      
|  
           2012 
            |  
         
           8.07 
            |  
         
           19.32 
            |  
         
           11.25 
            |  
         
           139.41% 
            |  
      
|  
           2013 
            |  
         
           19.32 
            |  
         
           18.51 
            |  
         
           -0.81 
            |  
         
           -4.19% 
            |  
      
|  
           2014 
            |  
         
           18.51 
            |  
         
           16.56 
            |  
         
           -1.95 
            |  
         
           -10.53% 
            |  
      
|  
           2015 
            |  
        
           16.56 
            |  
         
           18.01 
            |  
         
           1.45 
            |  
         
           8.76% 
            |  
      
|  
           2016 
            |  
        
           18.01 
            |  
         
           18.93 
            |  
         
           0.92 
            |  
         
           5.11% 
            |  
      
|  
           2017 
            |  
        
           18.93 
            |  
         
           26.26 
            |  
         
           7.33 
            |  
         
           38.72% 
            |  
      
|  
           2018 
            |  
         
           26.26 
            |  
         
           22.22 
            |  
         
           -4.04 
            |  
         
           -15.38% 
            |  
      
|  
           2019 
            |  
         
           22.22 
            |  
         
           29.67 
            |  
         
           7.45 
            |  
         
           33.53% 
            |  
      
|  
           2020 
            |  
         
           29.67 
            |  
         
           37.17 
            |  
         
           7.50 
            |  
         
           25.28% 
            |  
      
|  
           2021 
            |  
         
           37.17 
            |  
         
           78.35 
            |  
         
           41.18 
            |  
         
           110.79% 
            |  
      
|  
           2022 
            |  
         
           78.35 
            |  
         
           59.20 
            |  
         
           -19.15 
            |  
         
           -24.44% 
            |  
      
|  
           2023 
            |  
         
           59.20 
            |  
         
           70.83 
            |  
         
           11.63 
            |  
         
           19.65% 
            |  
      
|  
           2024 
            |  
         
           70.83 
            |  
         
           103.55 
            |  
         
           32.72 
            |  
         
           46.20% 
            |