Year	Percent
2000	28.66642
2001	30.07318
2002	31.47975
2003	32.98328
2004	34.48218
2005	35.98113
2006	37.47999
2007	38.97763
2008	40.47432
2009	41.96754
2010	43.45844
2011	44.945
2012	46.42738
2013	47.90361
2014	49.37184
2015	50.83147
2016	52.28117
2017	53.7208
2018	55.14943
2019	56.56585
2020	57.97027
2021	59.36117
2022	60.79116