Year	%
1996	49.39225
1999	42.45562
2000	42.50495
2001	41.35049
2002	42.80941
2003	42.52068
2006	34.63207
2007	43.16086
2008	43.66978
2010	37.31245
2011	46.79107
2012	36.32716
2013	45.20949
2015	45.77861
2016	44.60247
2019	31.6303