Year	Percent
2000	55.446
2001	55.50012
2002	55.55463
2003	55.60991
2004	55.66557
2005	55.23984
2006	54.80689
2007	54.3665
2008	53.9188
2009	53.46374
2010	52.98263
2011	52.48507
2012	51.98299
2013	51.47626
2014	50.96489
2015	50.44887
2016	49.9283
2017	49.40308
2018	48.87404
2019	48.34087
2020	47.8035
2021	47.26155
2022	46.71493