Year	% change from 1990
1991	-0.252110839873254
1992	24.5936874769699
1993	24.3810151908854
1994	26.1319855842075
1995	28.7268474453356
1996	29.9802454145582
1997	24.7597696660973
1998	51.7866269486129
1999	201.33866498648
2000	80.4299548373214
2001	26.0385046427107
2002	33.3913479326209
2003	14.6413039434046
2004	26.8015934372472
2005	26.3815092137069
2006	53.6041953553496
2007	81.7416134720356
2008	49.0681742354014
2009	71.1465193663133
2010	151.565618122149
2011	154.628322864453
2012	157.546459898682