Year	% change from 1990
1991	10.7144847351033
1992	25.8098157067229
1993	40.0382119969749
1994	15.1470763841898
1995	34.1042073000836
1996	33.5389881781634
1997	32.3241651076703
1998	235.17255104884
1999	-2.13031883134975
2000	-14.0707718027306
2001	4.06320901166262
2002	-1.71157903116665
2003	3.7312422879433
2004	5.77080762647773
2005	4.60693388528439
2006	-7.26585200812004
2007	-0.273852644986672
2008	9.62464673804879
2009	1046.90124587032
2010	65.7731958762887
2011	67.4309278350515
2012	69.0886597938144