 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1997 
           | 60.00 
           | 50.00 
           | -10.00 
           | -16.67% 
           | 
| 1998 
           | 50.00 
           | 73.50* 
           | 23.50 
           | 47.00% 
           | 
| 1999 
           | 24.50 
           | 20.50 
           | -4.00 
           | -16.33% 
           | 
| 2000 
           | 20.50 
           | 16.25 
           | -4.25 
           | -20.73% 
           | 
| 2001 
           | 16.25 
           | 18.11 
           | 1.86 
           | 11.45% 
           | 
| 2002 
           | 18.11 
           | 22.40 
           | 4.29 
           | 23.69% 
           | 
| 2003 
           | 22.40 
           | 35.00 
           | 12.60 
           | 56.25% 
           | 
| 2004 
           | 35.00 
           | 45.90* 
           | 10.90 
           | 31.14% 
           | 
| 2005 
           | 30.60 
           | 24.70 
           | -5.90 
           | -19.28% 
           | 
| 2006 
           | 24.70 
           | 24.00 
           | -0.70 
           | -2.83% 
           | 
| 2007 
           | 24.00 
           | 24.30 
           | 0.30 
           | 1.25% 
           | 
| 2008 
           | 24.30 
           | 18.50 
           | -5.80 
           | -23.87% 
           | 
| 2009 
           | 18.50 
           | 24.04 
           | 5.54 
           | 29.95% 
           | 
| 2010 
           | 24.04 
           | 24.65 
           | 0.61 
           | 2.54% 
           | 
| 2011 
           | 24.65 
           | 19.90 
           | -4.75 
           | -19.27% 
           | 
| 2012 
           | 19.90 
           | 20.34 
           | 0.44 
           | 2.21% 
           | 
| 2013 
           | 20.34 
           | 26.00 
           | 5.66 
           | 27.83% 
           | 
| 2014 
           | 26.00 
           | 26.75 
           | 0.75 
           | 2.88% 
           | 
| 2015 
           | 26.75 
           | 30.43 
           | 3.68 
           | 13.76% 
           | 
| 2016 
           | 30.43 
           | 37.90 
           | 7.47 
           | 24.55% 
           | 
| 2017 
           | 37.90 
           | 35.00 
           | -2.90 
           | -7.65% 
           | 
| 2018 
           | 35.00 
           | 25.49 
           | -9.51 
           | -27.17% 
           | 
| 2019 
           | 25.49 
           | 33.53 
           | 8.04 
           | 31.54% 
           | 
| 2020 
           | 33.53 
           | 24.18 
           | -9.35 
           | -27.89% 
           |