Year	% change from 1990
1991	-17.6659480378714
1992	17.1732122920388
1993	-16.9415866365782
1994	-11.5646154714026
1995	-4.53107797460189
1996	-14.0525935607099
1997	-16.6962192734171
1998	-11.6159571195404
1999	-13.2745469127789
2000	-17.5109394303661
2001	-11.7838895034239
2002	-16.5713623625902
2003	-17.9859989044903
2004	-13.4747703018945
2005	-12.1187943497462
2006	15.6739722128883
2007	67.8846520318562
2008	22.5880205878358
2009	18.0395874388823
2010	20.2657898865067
2011	21.4684477853718
2012	22.6711056842369