Year	Percent
2000	45.65325
2001	46.28949
2002	46.91372
2003	47.52593
2004	48.12614
2005	48.71433
2006	49.2905
2007	49.85467
2008	50.40682
2009	50.94697
2010	51.4751
2011	51.99121
2012	52.49532
2013	52.98741
2014	53.46749
2015	53.93556
2016	54.39162
2017	54.83566
2018	55.26769
2019	55.68771
2020	56.09572
2021	56.91098
2022	57.72625