Year % change from 1990 1991 -0.40339060864224 1992 -3.92885532905509 1993 1.01575208377973 1994 2.09190228178309 1995 7.114237779919 1996 8.43972378279436 1997 9.74713135730709 1998 12.2961543241528 1999 64.551435475583 2000 24.3474870759641 2001 18.812645451775 2002 15.1167872643018 2003 18.8256518876835 2004 21.1380584442346 2005 22.8684837253477 2006 23.2012406682754 2007 24.4653014187378 2008 27.502760045721 2009 30.6187835672389 2010 30.3378320756378 2011 32.018992594678 2012 62.2827192697192