Year	Percent
1996	77.21398
1997	123.37298
1998	109.46757
1999	108.12307
2000	73.09299
2001	73.52214
2002	77.69871
2003	86.92501
2004	102.97094
2005	108.74267
2006	114.1439
2007	124.65877
2008	77.58331
2009	70.89753
2010	78.01314
2011	57.65084
2014	66.09476
2015	61.84914
2016	60.31906
2017	61.47818