Year	Percent
2004	79.10345
2006	88.09877
2007	94.91642
2008	95.64662
2009	64.93062
2010	63.2615
2011	69.88623
2012	68.62353
2013	63.89938
2014	61.25315
2015	58.9997
2016	60.49423
2017	63.52898