Year	% change from 1990
1991	16.2991875270556
1992	21.9407048587385
1993	14.9872816322442
1994	17.9731465349156
1995	20.3175477699031
1996	21.7131695031072
1997	28.3091904964636
1998	28.7399335281933
1999	33.1006700844671
2000	33.2630931213486
2001	32.9962041664729
2002	42.7830865385648
2003	43.0789540528841
2004	42.5151243037096
2005	42.469688784582
2006	42.3537745468076
2007	42.2997527878448
2008	42.2138903894933
2009	42.1333943910388
2010	42.0528983925843
2011	43.4734273765102
2012	44.8939563604361