Year	% change from 1990
1991	3.38370256209561
1992	9.34071114981709
1993	9.56590838504376
1994	15.3884639824395
1995	18.1282450987058
1996	21.2658004762373
1997	24.0474529167683
1998	50.1043189658072
1999	63.385864981092
2000	60.5402866783979
2001	58.4894016863434
2002	34.5974325257517
2003	38.1135425544908
2004	32.6457858827954
2005	48.0461388402591
2006	46.8570190924251
2007	58.3179364646259
2008	51.407225478318
2009	51.9773261182318
2010	61.9145154024152
2011	63.6840205632741
2012	65.3984390210543