 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1975 
           | 23.25 
           | 33.50 
             | 10.25 
           | 44.09% 
           | 
| 1976 
           | 33.50 
           | 40.375 
             | 6.875 
           | 20.52% 
           | 
| 1977 
           | 40.375 
           | 39.375 
             | -1.00 
           | -2.48% 
           | 
| 1978 
           | 39.375 
           | 40.75 
             | 1.375 
           | 3.49% 
           | 
| 1979 
           | 40.75 
           | 47.875 
             | 7.125 
           | 17.48% 
           | 
| 1980 
           | 47.875 
           | 55.00 
             | 7.125 
           | 14.88% 
           | 
| 1981 
           | 55.00 
           | 54.1875* 
             | -0.8125 
           | -1.48% 
           | 
| 1982 
           | 36.125 
           | 63.375 
             | 27.25 
           | 75.43% 
           | 
| 1983 
           | 63.375 
           | 59.00 
             | -4.375 
           | -6.90% 
           | 
| 1984 
           | 59.00 
           | 70.50* 
             | 11.50 
           | 19.49% 
           | 
| 1985 
           | 47.00 
           | 61.25 
             | 14.25 
           | 30.32% 
           | 
| 1986 
           | 61.25 
           | 72.125 
             | 10.875 
           | 17.76% 
           | 
| 1987 
           | 72.125 
           | 78.25* 
             | 6.125 
           | 8.49% 
           | 
| 1988 
           | 39.125 
           | 35.625 
             | -3.50 
           | -8.95% 
           | 
| 1989 
           | 35.625 
           | 43.50 
             | 7.875 
           | 22.11% 
           | 
| 1990 
           | 43.50 
           | 36.125 
             | -7.375 
           | -16.95% 
           | 
| 1991 
           | 36.125 
           | 45.50 
             | 9.375 
           | 25.95% 
           | 
| 1992 
           | 45.50 
           | 50.75 
             | 5.25 
           | 11.54% 
           | 
| 1993 
           | 50.75 
           | 57.25 
             | 6.50 
           | 12.81% 
           | 
| 1994 
           | 57.25 
           | 53.25 
             | -4.00 
           | -6.99% 
           | 
| 1995 
           | 53.25 
           | 61.375 
           | 8.125 
           | 15.26% 
           | 
| 1996 
           | 61.375 
           | 74.875 
           | 13.50 
           | 22.00% 
           | 
| 1997 
           | 74.875 
           | 123.625* 
           | 48.75 
           | 65.11% 
           | 
| 1998 
           | 61.8125 
           | 64.50 
           | 2.6875 
           | 4.35% 
           | 
| 1999 
           | 64.50 
           | 81.5625 
             | 17.0625 
           | 26.45% 
           | 
| 2000 
           | 81.5625 
           | 63.0625 
           | -18.50 
           | -22.68% 
           | 
| 2001 
           | 63.0625 
           | 67.23 
             | 4.1675 
           | 6.61% 
           | 
| 2002 
           | 67.23 
           | 71.80 
             | 4.57 
           | 6.80% 
           | 
| 2003 
           | 71.80 
           | 89.16 
           | 17.36 
           | 24.18% 
           | 
| 2004 
           | 89.16 
           | 81.70 
             | -7.46 
           | -8.37% 
           | 
| 2005 
           | 81.70 
           | 60.57 
           | -21.13 
           | -25.86% 
           | 
| 2006 
           | 60.57 
           | 60.46 
             | -0.11 
           | -0.18% 
           | 
| 2007 
           | 60.46 
           | 39.00 
           | -21.46 
           | -35.49% 
           | 
| 2008 
           | 39.00 
           | 8.00 
           | -31.00 
           | -79.49% 
           | 
| 2009 
           | 8.00 
           | 14.85 
           | 6.85 
           | 85.63% 
           | 
| 2010 
           | 14.85 
           | 15.09 
           | 0.24 
           | 1.62% 
           | 
| 2011 
           | 15.09 
           | 13.37 
           | -1.72 
           | -11.40% 
           | 
| 2012 
           | 13.37 
           | 18.01 
           | 4.64 
           | 34.70% 
           | 
| 2013 
           | 18.01 
           | 29.58 
           | 11.57 
           | 64.24% 
           | 
| 2014 
           | 29.58 
           | 31.93 
           | 2.35 
           | 7.94% 
           | 
| 2015 
           | 31.93 
           | 33.665* 
           | 1.735 
           | 5.43% 
           | 
| 2016 
           | 25.52 
           | 21.39 
           | -4.13 
           | -16.18% 
           | 
| 2017 
           | 21.39 
           | 23.69333* 
           | 2.30333 
           | 10.77% 
           | 
| 2018 
           | 14.08 
           | 10.87 
           | -3.21 
           | -22.80% 
           | 
| 2019 
           | 10.87 
           | 16.69 
           | 5.82 
           | 53.54% 
           | 
| 2020 
           | 16.69 
           | 13.95 
           | -2.74 
           | -16.42% 
           | 
| 2021 
           | 13.95 
           | 18.56 
           | 4.61 
           | 33.05% 
           | 
| 2022 
           | 18.56 
           | 21.19 
           | 2.63 
           | 14.17% 
           | 
| 2023 
           | 21.19 
           | 15.30 
           | -5.89 
           | -27.80% 
           | 
| 2024 
           | 15.30 
           | 18.29 
           | 2.99 
           | 19.54% 
           |