Year	% change from 1990
1991	-0.684151919431109
1992	4.84015899528512
1993	9.3860780458239
1994	13.3627220894912
1995	11.0320598205665
1996	14.0192119302845
1997	12.0305375252835
1998	5.184261158213
1999	17.2364702482892
2000	16.2002875446646
2001	16.4820178869696
2002	17.4101951497981
2003	13.9032778682228
2004	18.0991042419886
2005	19.0195290751351
2006	17.5035766891487
2007	20.1644219858906
2008	20.7983593039728
2009	13.6988956311535
2010	21.1530329619215
2011	22.3645632915407
2012	23.5760936211599