Year	% change from 1990
1991	16.9167479072553
1992	24.2446241551287
1993	13.4802681389404
1994	26.8920146594322
1995	23.2552727454349
1996	21.8851417421788
1997	78.5232176811647
1998	19.4579374759205
1999	6.58219559093034
2000	1.54183920312094
2001	5.86225633388546
2002	28.0434401908817
2003	24.7713428902445
2004	47.1583066466216
2005	55.4490376587866
2006	85.0788493547359
2007	74.0966756698114
2008	83.1184088647202
2009	99.7201014658286
2010	103.321237626905
2011	121.705065549708
2012	128.520056929972