Year	% change from 1990
1991	3.79222034546125
1992	7.25504154538699
1993	8.91276168841293
1994	18.6744391906061
1995	26.3297825413589
1996	33.6730241802335
1997	34.1187735918302
1998	31.7682908905779
1999	21.1099492175359
2000	28.988261248417
2001	33.4009684949082
2002	38.0977731029401
2003	42.9783817789529
2004	48.8418064029578
2005	52.4630910067082
2006	57.1496653747475
2007	61.3827293477306
2008	54.2582405061113
2009	60.2370170418711
2010	63.0639269736833
2011	67.1889637356878
2012	70.9249595955226