Year	Percent
2000	40.87907
2001	41.10933
2002	41.34313
2003	42.5965
2004	43.76982
2005	44.92921
2006	46.07583
2007	47.20912
2008	48.32899
2009	49.43532
2010	50.52801
2011	51.6066
2012	52.67101
2013	53.72153
2014	54.75738
2015	55.77887
2016	56.78562
2017	57.7776
2018	58.75449
2019	59.71658
2020	60.66357
2021	61.59521
2022	61.75824