Year	% change from 1990
1991	-0.206337907607479
1992	-0.754169557499795
1993	-0.210843102096725
1994	0.828054747123419
1995	0.34239478118272
1996	1.8948848021769
1997	3.29690132723031
1998	5.32153573069749
1999	6.14508528333166
2000	8.21747474838488
2001	14.6274654676842
2002	14.0598109620392
2003	13.8534730544318
2004	14.5058252164746
2005	14.2454249749962
2006	14.790553508195
2007	14.8103763639476
2008	15.160880495211
2009	15.0617662164475
2010	14.7977618193777
2011	15.9457394375715
2012	17.0937170557653
