Year	% change from 1990
1991	10.7299288715218
1992	3.36896142205876
1993	9.98199440677316
1994	6.93585667036993
1995	21.838996794749
1996	19.4950771941922
1997	20.7887982224265
1998	36.066097128044
1999	15.1785873909767
2000	29.4372294372294
2001	23.8588157172228
2002	8.17466702422454
2003	19.7609470175842
2004	15.5098392266534
2005	26.2499840375946
2006	17.8339654445849
2007	27.6973272548494
2008	29.3171921490506
2009	30.9057707287796
2010	29.4895861267543
2011	30.7844819880218
2012	32.0793778492893