Year	% change from 1990
1991	10.3584509010558
1992	8.6362011359939
1993	12.1757080628354
1994	21.401780451239
1995	29.5253198923852
1996	42.1195523531957
1997	40.5563938363849
1998	44.8210520238864
1999	47.8759147715843
2000	59.2038358413943
2001	58.6497633057658
2002	74.9002700070953
2003	84.9576811620782
2004	93.1065003548215
2005	97.7523835871519
2006	109.43489893056
2007	131.709974144692
2008	150.195997710923
2009	151.621726257335
2010	166.387517500362
2011	174.960602996798
2012	182.610679297568