Year	% change from 1990
1991	6.91679865600723
1992	13.9575070939918
1993	21.1010209497382
1994	28.4031309682515
1995	35.0643787585619
1996	42.8742472428506
1997	50.8859653888427
1998	58.8577733015166
1999	66.8279095813814
2000	74.6323452590404
2001	82.5922427879492
2002	90.4376334694321
2003	98.162457634556
2004	105.91298315412
2005	113.634673007727
2006	120.233443521796
2007	127.482061290417
2008	135.43903346191
2009	143.981077116601
2010	153.275355535403
2011	155.808109090757
2012	158.340862646111