Year	%
2000	46.64663
2001	47.82771
2002	43.46902
2003	40.75322
2004	41.73136
2006	63.32748
2007	64.99625
2008	61.11441
2009	48.30678
2010	60.62018
2011	62.12216
2012	63.16595
2013	60.7725
2014	52.80134
2016	57.26474