Year	% change from 1990
1991	2.87334542041251
1992	5.53969502641534
1993	7.93622480379552
1994	10.1698195749597
1995	12.2806517947807
1996	14.1388852980566
1997	15.8672051143862
1998	17.4063983690445
1999	52.7653210774268
2000	133.821443763693
2001	149.65535819528
2002	151.936886917996
2003	154.341675214379
2004	156.706804760108
2005	159.065791443555
2006	161.523235648886
2007	164.525696969179
2008	167.971685702924
2009	169.801917205478
2010	177.888402678782
2011	183.315036082645
2012	188.329466364967