Year	% change from 1990
1991	3.45111959698094
1992	10.1687014826368
1993	11.372783664103
1994	15.9753222538948
1995	19.0907420355331
1996	22.407626526112
1997	25.9981354990229
1998	30.4108625109809
1999	33.7353663565141
2000	37.2183079653633
2001	33.367620430628
2002	15.4522759461446
2003	17.8288423958838
2004	19.0351655641012
2005	33.9957690170136
2006	35.0815270980118
2007	39.9005450079779
2008	40.1228508937055
2009	45.2284910091612
2010	50.667141755858
2011	52.1738131734165
2012	53.6804845909751