Year % change from 1990 1991 449.61832060989 1992 1495.41984733033 1993 6754.96183205792 1994 16922.9007633574 1995 33258.7786259526 1996 60739.6946564851 1997 83869.4656488475 1998 118220.610687009 1999 164022.13740456 2000 210587.022900742 2001 247228.244274784 2002 288449.61832058 2003 340358.015267138 2004 410587.022900718 2005 481579.389312927 2006 530434.351144983 2007 586159.541984673 2008 641884.732824357 2009 695319.847328171 2010 748754.961831976 2011 748754.961831979 2012 748754.96183198