Year	% change from 1990
1991	12.0612917186765
1992	17.4245069124236
1993	3.92683138268135
1994	14.3856978600302
1995	12.8419057280305
1996	12.6731124678144
1997	58.7462904575707
1998	24.701070343209
1999	15.6201466970373
2000	9.86790091049039
2001	13.4634600356751
2002	21.9004899035286
2003	13.2598705865048
2004	24.5084757713025
2005	31.9215451545678
2006	48.1478737517506
2007	27.7727315987709
2008	27.6641709513696
2009	39.8370341526684
2010	39.9600397343083
2011	43.6337365250334
2012	47.3074333157587