 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1986 
           | 20.875 
           | 29.125 
               | 8.25 
           | 39.52% 
           | 
| 1987 
           | 29.125 
           | 27.50 
               | -1.625 
           | -5.58% 
           | 
| 1988 
           | 27.50 
           | 25.875 
               | -1.625 
           | -5.91% 
           | 
| 1989 
           | 25.875 
           | 31.625 
               | 5.75 
           | 22.22% 
           | 
| 1990 
           | 31.625 
           | 33.125 
               | 1.50 
           | 4.74% 
           | 
| 1991 
           | 33.125 
           | 48.75 
               | 15.625 
           | 47.17% 
           | 
| 1992 
           | 48.75 
           | 50.50* 
               | 1.75 
           | 3.59% 
           | 
| 1993 
           | 25.25 
           | 27.125 
               | 1.875 
           | 7.43% 
           | 
| 1994 
           | 27.125 
           | 30.125 
               | 3.00 
           | 11.06% 
           | 
| 1995 
           | 30.125 
           | 35.125 
               | 5.00 
           | 16.60% 
           | 
| 1996 
           | 35.125 
           | 35.00 
               | -0.125 
           | -0.36% 
           | 
| 1997 
           | 35.00 
           | 37.8125 
               | 2.8125 
           | 8.04% 
           | 
| 1998 
           | 37.8125 
           | 30.75 
               | -7.0625 
           | -18.68% 
           | 
| 1999 
           | 30.75 
           | 23.875 
           | -6.875 
           | -22.36% 
           | 
| 2000 
           | 23.875 
           | 29.875 
             | 6.00 
           | 25.13% 
           | 
| 2001 
           | 29.875 
           | 36.21 
               | 6.335 
           | 21.21% 
           | 
| 2002 
           | 36.21 
           | 38.30 
               | 2.09 
           | 5.77% 
           | 
| 2003 
           | 38.30 
           | 50.80 
               | 12.50 
           | 32.64% 
           | 
| 2004 
           | 50.80 
           | 55.38* 
               | 4.58 
           | 9.02% 
           | 
| 2005 
           | 27.69 
           | 25.56 
             | -2.13 
           | -7.69% 
           | 
| 2006 
           | 25.56 
           | 36.82 
           | 11.26 
           | 44.05% 
           | 
| 2007 
           | 36.82 
           | 34.78 
           | -2.04 
               | -5.54% 
           | 
| 2008 
           | 34.78 
           | 27.77 
           | -7.01 
           | -20.16% 
           | 
| 2009 
           | 27.77 
           | 30.54 
           | 2.77 
           | 9.97% 
           | 
| 2010 
           | 30.54 
           | 36.79 
             | 6.25 
           | 20.46% 
           | 
| 2011 
           | 36.79 
           | 41.43 
           | 4.64 
           | 12.61% 
           | 
| 2012 
           | 41.43 
           | 45.16 
           | 3.73 
           | 9.00% 
           | 
| 2013 
           | 45.16 
           | 36.32 
           | -8.84 
           | -19.57% 
           | 
| 2014 
           | 36.32 
           | 44.03 
           | 7.71 
           | 21.23% 
           | 
| 2015 
           | 44.03 
           | 38.24 
           | -5.79 
           | -13.15% 
           | 
| 2016 
           | 38.24 
           | 32.82* 
           | -5.42 
           | -14.17% 
           | 
| 2017 
           | 29.72 
           | 26.08 
           | -3.64 
           | -12.25% 
           | 
| 2018 
           | 26.08 
           | 27.93 
           | 1.85 
           | 7.09% 
           | 
| 2019 
           | 27.93 
           | 34.47 
           | 6.54 
           | 23.42% 
           | 
| 2020 
           | 34.47 
           | 30.23 
           | -4.24 
           | -12.30% 
           | 
| 2021 
           | 30.23 
           | 36.09 
           | 5.86 
           | 19.38% 
           | 
| 2022 
           | 36.09 
           | 25.07 
           | -11.02 
           | -30.53% 
           | 
| 2023 
           | 25.07 
           | 19.80 
           | -5.27 
           | -21.02% 
           | 
| 2024 
           | 19.80 
           | 20.27 
           | 0.47 
           | 2.37% 
           |