Year	Percent
2000	33.99666
2001	35.02626
2002	36.07106
2003	37.13105
2004	38.20623
2005	39.2966
2006	40.40217
2007	41.52293
2008	42.65888
2009	43.81003
2010	44.97636
2011	46.1579
2012	47.35462
2013	48.56654
2014	49.79365
2015	51.03595
2016	52.29345
2017	53.56614
2018	54.85402
2019	56.1571
2020	57.47537
2021	58.80883
2022	60.15748