Year	Percent
2000	37.52961
2001	38.24283
2002	38.95624
2003	39.66985
2004	40.38366
2005	41.09767
2006	41.81188
2007	42.52629
2008	43.24089
2009	43.9557
2010	44.67071
2011	45.38591
2012	46.10131
2013	46.81692
2014	47.53272
2015	48.24872
2016	48.96492
2017	49.68132
2018	50.39791
2019	51.11471
2020	51.83171
2021	52.5489
2022	53.2663