Year	% change from 1990
1991	6.58736068344361
1992	13.2805111089198
1993	20.0654659909816
1994	26.9615721298182
1995	28.1432341466137
1996	35.5128822461444
1997	43.0720552984637
1998	50.5933983002454
1999	58.1105902816633
2000	65.4687577421162
2001	72.924401371633
2002	80.266678772262
2003	87.4904790111749
2004	94.7335281239595
2005	101.945325645564
2006	108.177630130345
2007	115.015778548918
2008	122.516542168959
2009	130.565277223834
2010	139.317680498873
2011	141.710857303862
2012	144.10403410885