Year % change from 1990 1991 2.52899354271772 1992 20.1689484395511 1993 24.4289576099602 1994 29.5941118316195 1995 36.5085967884629 1996 41.4371225000595 1997 45.1015263214353 1998 47.9347087571586 1999 47.7248886368715 2000 53.4488577641731 2001 52.2275142563329 2002 62.3770825684898 2003 61.4578580670515 2004 80.027930581235 2005 92.5952459914478 2006 96.7622794255201 2007 106.051656886652 2008 110.953077294428 2009 109.629999938964 2010 120.616874009036 2011 127.951132729629 2012 134.484457144636