Year	% change from 1990
1991	-1.66740986054182
1992	1.86232049741726
1993	3.38751617257407
1994	6.1616796908095
1995	10.4036895745738
1996	13.146320049383
1997	17.2779541040599
1998	19.4979714600239
1999	24.5793425388226
2000	28.8857926924173
2001	27.4820081187809
2002	29.9491853210126
2003	38.1881109176466
2004	43.6506010281914
2005	50.2243337208093
2006	55.7456111371006
2007	57.3764247115705
2008	60.982060250266
2009	62.2388171473016
2010	65.1628265724805
2011	67.8295415464282
2012	70.4960419761959