Year	% change from 1990
1991	1.64011575634975
1992	4.65764778601934
1993	5.53846369970781
1994	10.6596988087211
1995	14.2159755001124
1996	21.7457574735896
1997	22.3540402337604
1998	18.260423690717
1999	17.3627500561924
2000	21.5982524162733
2001	23.680180939537
2002	26.687176893684
2003	29.8522139806698
2004	28.0575691166554
2005	21.424758372668
2006	20.3226848730052
2007	24.1992582602832
2008	24.3306080017982
2009	22.2704540346145
2010	20.4484153742414
2011	18.8072992253273
2012	15.2572358410795