Year	%
2001	52.99232
2002	52.39787
2003	53.45529
2004	53.75704
2005	53.8045
2006	51.28032
2007	50.5969
2008	50.59186
2009	50.92473
2010	51.04968
2011	50.05604
2012	48.73383
2013	48.74172
2014	49.44308
2015	43.38366
2016	43.4906
2017	45.39889
2018	44.64887
2019	43.70258
2020	43.49623
2021	44.01746