Year	% change from 1990
1991	9.99588090901129
1992	5.64193173138139
1993	7.47804585334342
1994	4.60164710145214
1995	10.2040089052569
1996	8.42766635006544
1997	22.5095790787487
2002	86.360203420714
2003	90.8399477793472
2007	115.324024302864
2008	120.771188754044
2009	120.641462453151
2010	133.817919730968
2011	141.96505802316
2012	149.207854275828