Year	Percent
2000	51.06271
2001	49.91398
2002	48.78795
2003	47.72431
2004	46.69543
2005	46.57834
2006	46.48626
2007	46.41853
2008	46.3745
2009	46.35349
2010	46.35478
2011	46.37754
2012	46.4212
2013	46.48443
2014	46.56603
2015	46.66468
2016	46.77876
2017	46.90722
2018	47.04853
2019	47.20141
2020	47.36458
2021	47.53642
2022	47.71599