Year	% change from 1990
1991	-17.0708849867854
1992	-6.50681017303198
1993	-11.136627940053
1994	-14.6996564699693
1995	-6.95777624040809
1996	-8.56570138688218
1997	-6.94025275437525
1998	61.6807221869885
1999	38.1267398556237
2000	67.1891651860457
2001	21.926662955248
2002	31.4567598372156
2003	71.1959433257967
2004	0.0316632325281008
2005	64.756645983247
2006	26.9926756031149
2007	23.3477607814029
2008	23.9479804118281
2009	19.6652587879273
2010	2.32535388944561
2011	2.90273389616031
2012	3.45174871470895