Year	% change from 1990
1991	4.4227611362476
1992	10.595553320444
1993	12.8996944268549
1994	10.4636953651929
1995	17.1833914172737
1996	26.8861437221048
1997	24.7478983221842
1998	20.2320700012419
1999	18.3819189012246
2000	26.8620719791113
2001	30.1292361284665
2002	19.8647076049842
2003	27.3496397671327
2004	30.234262523056
2005	29.354800626172
2006	42.6649412695468
2007	56.9891615827248
2008	47.4098344569369
2009	31.7004923208073
2010	34.9573838155093
2011	36.3069576536643
2012	37.6565314918194