Year	% change from 1990
1991	6.67404757849317
1992	6.61317082710371
1993	8.11553334973536
1994	16.5676236618155
1995	21.7112360188497
1996	37.835374123911
1997	34.4262760461023
1998	33.5758940681441
1999	26.1694329314837
2000	19.8609612849095
2001	-1.79034425329776
2002	-3.79769993123765
2003	-13.1916450601513
2004	-12.8601348751238
2005	-11.2464278279301
2006	-11.0729448576493
2007	-8.85614792104318
2008	-9.13687490931573
2009	-7.81020332204118
2010	3.06844060889369
2011	-10.6465184793921
2012	-13.4828336367429