Year	Percent
2000	44.51701
2001	44.63278
2002	44.82097
2003	44.8626
2004	44.88169
2005	44.25559
2006	43.63137
2007	43.00932
2008	42.38918
2009	41.7712
2010	41.15517
2011	40.54131
2012	39.92942
2013	39.31972
2014	38.71709
2015	38.12065
2016	37.52919
2017	36.94167
2018	36.35716
2019	35.77434
2020	35.19236
2021	34.60995
2022	34.61786