Year	%
2001	56.56174
2002	56.65853
2003	56.38166
2004	54.97051
2005	56.1638
2006	49.45201
2007	46.77041
2008	46.76675
2009	46.77041
2010	46.58094
2011	48.70028
2012	48.62197
2013	50.15208
2014	50.04859
2015	34.9859
2016	35.62199
2017	44.04957
2018	41.09546
2019	39.17471
2020	35.12188
2021	35.09084