Year	% change from 1990
1991	1.07766082872589
1992	5.35583204500418
1993	4.97765597168478
1994	4.07835837150172
1995	7.11637656496629
1996	10.3787122903954
1997	14.8502371643662
1998	11.8722067567649
1999	18.1612872841217
2000	17.5951780636322
2001	19.1943526924154
2002	19.2245168483494
2003	21.8897003982342
2004	37.5266942683443
2005	33.5780641730786
2006	36.0639180351402
2007	45.2836975412228
2008	44.5780155858096
2009	43.7876003026278
2010	45.1338521012411
2011	46.5109802033353
2012	47.8881074023372