Year % change from 1990 1991 -4.52120428620532 1992 -12.7596346155474 1993 -19.4570586306873 1994 -20.0787485905445 1995 -17.9859944266739 1996 -19.5607359380655 1997 -25.9807590856536 1998 13.5015138497122 1999 19.121093064105 2000 14.6491490274693 2001 20.7920184385325 2002 9.75627770294332 2003 14.0192287243965 2004 24.7569253081801 2005 27.46523613932 2006 47.2636670222972 2007 35.9446349259359 2008 72.7624101569383 2009 53.4441697114834 2010 87.1107693164509 2011 92.919468003078 2012 98.4529215293148