Year	%
1996	53.58717
1999	45.22731
2000	54.88332
2001	44.27227
2002	43.1162
2003	46.23768
2004	49.05668
2005	49.05668
2006	39.17942
2007	48.28343
2008	48.49627
2009	48.79646
2010	50.50492
2011	50.50492
2012	43.46917
2013	51.99967
2014	50.42336
2015	50.99653
2016	51.02241
2017	50.27856
2018	42.54684
2019	43.26488
2020	43.26488
2021	43.26488