Year	% change from 1990
1991	-3.11082531785943
1992	-19.2929697427091
1993	-30.5672568211747
1994	-39.1808429531855
1995	-41.8469346106752
1996	-39.7087475838063
1997	-41.3282711989711
1998	-41.5947263444048
1999	-44.2592777987417
2000	-42.6540010627402
2001	-41.8831293847659
2002	-40.6278638152372
2003	-41.3617706175445
2004	-26.9789685259486
2005	-27.5284360007085
2006	-22.0241349834043
2007	-17.7184970697635
2008	-9.15920309888876
2009	4.92171917475914
2010	22.4503862059406
2011	24.7467373257527
2012	27.0430884455649