Year	% change from 1990
1991	0.287517368620516
1992	-0.206336351043712
1993	-3.51684128651339
1994	2.30034040602516
1995	5.27987798256171
1996	4.76027026082537
1997	-2.66103745497738
1998	1.91623512101942
1999	8.54474161211365
2000	7.09303155459551
2001	7.24638872773069
2002	9.17147291730802
2003	12.5038187528965
2004	20.6062971125804
2005	21.9676426652425
2006	24.5181151129407
2007	28.4178306475123
2008	32.128270020796
2011	44.459711621021
2012	48.4732937384064