Year	Percent
2000	30.90579
2001	32.80767
2002	34.70445
2003	36.59516
2004	38.48022
2005	40.35916
2006	42.21291
2007	44.05647
2008	45.88949
2009	47.712
2010	49.52441
2011	51.32672
2012	53.11896
2013	54.90051
2014	56.67206
2015	58.43361
2016	60.18517
2017	61.92651
2018	63.66155
2019	65.38994
2020	67.11104
2021	68.82427
2022	70.52881