Year	Percent
2000	40.62712
2001	41.25471
2002	41.86795
2003	42.46686
2004	43.05143
2005	43.62166
2006	44.17755
2007	44.7191
2008	45.24631
2009	45.75918
2010	46.25772
2011	46.74192
2012	47.21177
2013	47.66729
2014	48.10847
2015	48.95158
2016	49.79468
2017	50.63779
2018	51.48089
2019	52.324
2020	53.1671
2021	54.01021
2022	54.85331