Internal Rate of Return

  1 Year 5 Years 10 Years  
1997 -4.6% - -  
1998 9.2% - -  
1999 -0.3% - -  
2000 -1.0% - -  
2001 10.3% 2.5% -  
2002 4.8% 4.5% -  
2003 56.4% 12.0% -  
2004 44.0% 20.5% -  
2005 16.7% 24.7% -  
2006 26.4% 28.3% 14.2%  
2007 78.7% 42.7% 21.5%  
2008 5.5% 32.1% 21.3%  
2009 -13.1% 19.6% 20.0%  
2010 18.9% 20.1% 22.5%  
2011 11.0% 17.0% 22.8% new