Year	Percent
1993	1.66031
1994	1.80315
1995	37.66015
1996	48.7466
1997	91.98111
1998	63.47846
1999	52.17663
2000	42.87156
2001	47.84177
2002	42.58953
2003	41.35964
2004	49.56069
2005	52.4137
2006	89.35842
2007	109.43077
2008	143.81342
2009	117.396
2010	89.51842
2011	140.95519
2012	109.16489
2013	150.7753
2014	134.17666
2015	55.38203
2016	46.67166