Year	Percent
1984	29.64426
1985	26.25456
1986	49.01516
1987	107.05673
1988	221.72819
1989	206.43982
1990	204.32313
1991	182.1956
1992	169.99957
1993	149.63058
1994	134.35133
1995	122.80058
1996	120.97611
1997	136.45341
1998	197.82656
1999	178.81612
2000	152.43438
2001	152.1346
2002	187.05347
2003	131.22298
2004	129.96781
2005	122.80227
2006	116.65243
2007	122.38497
2008	108.95954
2009	112.62462
2010	97.43725
2011	98.08401
2012	85.14241
2013	86.68918
2014	89.88646
2015	94.63351
2016	93.07781