Year	Percent
1993	8.73146
1994	5.89027
1995	14.7675
1996	12.80134
1997	13.75337
1998	6.85353
1999	6.84564
2000	18.85675
2001	25.71881
2002	34.90555
2003	42.17709
2004	58.94205
2005	72.95786
2006	97.59301
2007	115.01634
2008	101.66902
2009	108.09746
2010	114.68986
2011	91.38396
2012	90.88027
2013	76.24886
2014	70.27324
2015	78.69407
2016	71.86245