Year	% change from 1990
1991	-18.8876370647214
1992	-7.89349233655285
1993	-13.5170510440647
1994	-13.5710170366204
1995	-4.0407639190831
1996	-5.2530285401998
1997	-4.61240602214444
1998	78.5109719292138
1999	37.8840822755365
2000	29.4449487953722
2001	23.2068406475845
2002	56.8704201791874
2003	15.1858768619112
2004	17.0403797585515
2005	25.7047188342634
2006	55.7393991579525
2007	39.8282067737463
2008	107.498042984734
2009	145.83469387732
2010	53.8637501670982
2011	54.6928840612906
2012	55.5131858604113