 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1987 
           | 12.125 
           | 6.875 
             | -5.25 
           | -43.30% 
           | 
| 1988 
           | 6.875 
           | 8.875 
             | 2.00 
           | 29.09% 
           | 
| 1989 
           | 8.875 
           | 13.50 
             | 4.625 
           | 52.11% 
           | 
| 1990 
           | 13.50 
           | 7.625 
             | -5.875 
           | -43.52% 
           | 
| 1991 
           | 7.625 
           | 19.375 
             | 11.75 
           | 154.10% 
           | 
| 1992 
           | 19.375 
           | 29.00 
             | 9.625 
           | 49.68% 
           | 
| 1993 
           | 29.00 
           | 34.00 
             | 5.00 
           | 17.24% 
           | 
| 1994 
           | 34.00 
           | 41.25 
             | 7.25 
           | 21.32% 
           | 
| 1995 
           | 41.25 
           | 66.25* 
             | 25.00 
           | 60.61% 
           | 
| 1996 
           | 33.125 
           | 43.50 
             | 10.375 
           | 31.32% 
           | 
| 1997 
           | 43.50 
           | 67.875* 
             | 24.375 
           | 56.03% 
           | 
| 1998 
           | 33.9375 
           | 24.1875 
             | -9.75 
           | -28.73% 
           | 
| 1999 
           | 24.1875 
           | 24.875 
             | 0.6875 
           | 2.84% 
           | 
| 2000 
           | 24.875 
           | 44.5625 
             | 19.6875 
           | 79.15% 
           | 
| 2001 
           | 44.5625 
           | 47.98 
             | 3.4175 
           | 7.67% 
           | 
| 2002 
           | 47.98 
           | 43.69 
             | -4.29 
           | -8.94% 
           | 
| 2003 
           | 43.69 
           | 51.35 
             | 7.66 
           | 17.53% 
           | 
| 2004 
           | 51.35 
           | 64.28* 
             | 12.93 
           | 25.18% 
           | 
| 2005 
           | 32.14 
           | 27.14 
             | -5.00 
           | -15.56% 
           | 
| 2006 
           | 27.14 
           | 27.42 
             | 0.28 
           | 1.03% 
           | 
| 2007 
           | 27.42 
           | 17.93 
           | -9.49 
           | -34.61% 
             | 
| 2008 
           | 17.93 
           | 13.66 
           | -4.27 
           | -23.81% 
           | 
| 2009 
           | 13.66 
           | 13.62 
           | -0.04 
           | -0.29% 
           | 
| 2010 
           | 13.62 
           | 14.81 
           | 1.19 
           | 8.74% 
           | 
| 2011 
           | 14.81 
           | 10.32 
           | -4.49 
           | -30.32% 
           | 
| 2012 
           | 10.32 
           | 12.15 
           | 1.83 
           | 17.73% 
           | 
| 2013 
           | 12.15 
           | 16.25 
           | 4.10 
           | 33.74% 
           | 
| 2014 
           | 16.25 
           | 15.89 
           | -0.36 
           | -2.22% 
           | 
| 2015 
           | 15.89 
           | 14.12 
           | -1.77 
           | -11.14% 
           | 
| 2016 
           | 14.12 
           | 19.59 
           | 5.47 
           | 38.74% 
           | 
| 2017 
           | 19.59 
           | 20.50 
           | 0.91 
           | 4.65% 
           | 
| 2018 
           | 20.50 
           | 19.49 
           | -1.01 
           | -4.93% 
           | 
| 2019 
           | 19.49 
           | 23.77908** 
           | 4.28908 
           | 22.01% 
           | 
| 2020 
           | 46.80 
           | 37.02 
           | -9.78 
           | -20.90% 
           | 
| 2021 
           | 37.02 
           | 46.3032* 
           | 9.2832 
           | 25.08% 
           |