 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1991 
           | 3.00 
           | 3.875 
           | 0.875 
           | 29.17% 
           | 
| 1992 
           | 3.875 
           | 3.625 
           | -0.25 
           | -6.45% 
           | 
| 1993 
           | 3.625 
           | 8.25 
           | 4.625 
           | 127.59% 
           | 
| 1994 
           | 8.25 
           | 7.625 
           | -0.625 
           | -7.58% 
           | 
| 1995 
           | 7.625 
           | 6.875 
           | -0.75 
           | -9.84% 
           | 
| 1996 
           | 6.875 
           | 5.00 
           | -1.875 
           | -27.27% 
           | 
| 1997 
           | 5.00 
           | 7.25 
           | 2.25 
           | 45.00% 
           | 
| 1998 
           | 7.25 
           | 3.5625 
           | -3.6875 
           | -50.86% 
           | 
| 1999 
           | 3.5625 
           | 5.75 
           | 2.1875 
           | 61.40% 
           | 
| 2000 
           | 5.75 
           | 4.5625 
           | -1.1875 
           | -20.65% 
           | 
| 2001 
           | 4.5625 
           | 4.44 
           | -0.1225 
           | -2.68% 
           | 
| 2002 
           | 4.44 
           | 1.40 
           | -3.04 
           | -68.47% 
           | 
| 2003 
           | 1.40 
           | 2.91 
           | 1.51 
           | 107.86% 
           | 
| 2004 
           | 2.91 
           | 8.45 
           | 5.54 
           | 190.38% 
           | 
| 2005 
           | 8.45 
           | 15.06 
           | 6.61 
           | 78.22% 
           | 
| 2006 
           | 15.06 
           | 22.04 
           | 6.98 
           | 46.35% 
           | 
| 2007 
           | 22.04 
           | 27.66 
           | 5.62 
               | 25.50% 
           | 
| 2008 
           | 27.66 
           | 21.96 
           | -5.70 
           | -20.61% 
           | 
| 2009 
           | 21.96 
           | 18.09 
           | -3.87 
           | -17.62% 
           | 
| 2010 
           | 18.09 
           | 17.19 
           | -0.90 
           | -4.98% 
           | 
| 2011 
           | 17.19 
           | 13.69 
           | -3.50 
           | -20.36% 
           | 
| 2012 
           | 13.69 
           | 18.42 
           | 4.73 
           | 34.55% 
           | 
| 2013 
           | 18.42 
           | 17.75 
           | -0.67 
           | -3.64% 
           | 
| 2014 
           | 17.75 
           | 22.01 
           | 4.26 
           | 24.00% 
           | 
| 2015 
           | 22.01 
           | 15.49 
           | -6.52 
           | -29.62% 
           | 
| 2016 
           | 15.49 
           | 15.60 
           | 0.11 
           | 0.71% 
           | 
| 2017 
           | 15.60 
           | 16.90 
           | 1.30 
           | 8.33% 
           | 
| 2018 
           | 16.90 
           | 13.42 
           | -3.48 
           | -20.59% 
           | 
| 2019 
           | 13.42 
           | 14.84 
           | 1.42 
           | 10.58% 
           | 
| 2020 
           | 14.84 
           | 13.13 
           | -1.71 
           | -11.52% 
           | 
| 2021 
           | 13.13 
           | 20.25* 
           | 7.12 
           | 54.23% 
           |