Year	% change from 1990
1991	1.11221559797536
1992	-0.550692336759906
1993	0.129971093466064
1994	5.15118767103835
1995	7.81872402082426
1996	15.1688300435403
1997	15.1579991190848
1998	7.57466718976021
1999	18.4616717652241
2000	20.129874818582
2001	22.5916236037133
2002	20.7482002613863
2003	22.4667069416598
2004	25.4959961682596
2005	27.9808509255627
2006	30.0031048650106
2007	33.0930472685612
2008	35.6946353227736
2009	37.7195368215329
2010	34.9022930270509
2011	36.2513159573214
2012	37.6003388875919