Year	%
1996	48.97059
1999	39.18859
2000	41.99742
2001	41.5265
2002	41.32514
2003	43.9795
2006	38.91322
2007	44.58994
2008	44.86129
2009	41.43533
2010	44.56006
2011	43.39791
2012	37.56425
2013	37.56425
2014	43.2199
2015	43.2199
2016	43.2199
2017	40.39973
2018	34.60704
2019	34.60704
2020	28.55263