Year	Percent
2000	28.36482
2001	29.77009
2002	31.17732
2003	32.58653
2004	33.99771
2005	35.41085
2006	36.82597
2007	38.24305
2008	39.6621
2009	41.08313
2010	42.50612
2011	43.93108
2012	45.358
2013	46.7869
2014	48.21777
2015	49.6506
2016	51.08541
2017	52.52218
2018	53.96093
2019	55.40164
2020	56.84432
2021	58.28897
2022	59.73559