Year	% change from 1990
1991	-2.50606922101508
1992	6.64156097767405
1993	-4.14427252617995
1994	-1.74341508511047
1995	0.0165722967917947
1996	1.2297880016378
1997	12.0248155711209
1998	7.83474373451283
1999	-0.100222425240448
2000	-1.88762108834125
2001	-1.33900836601353
2002	1.28505681323936
2003	0.67089102787441
2004	4.05048040426741
2005	8.0214452824664
2006	15.6804751163124
2007	22.8430561574798
2008	13.826656876604
2009	15.6467286789588
2010	17.9179004284401
2011	19.4565363422395
2012	21.3841471044465