Year	Percent
2000	43.7736
2001	44.54942
2002	45.32523
2003	46.10105
2004	46.87687
2005	47.4019
2006	47.91876
2007	48.42746
2008	48.92799
2009	49.42035
2010	49.90455
2011	50.38059
2012	50.84845
2013	51.30815
2014	51.75969
2015	52.20306
2016	52.63826
2017	53.0653
2018	53.48417
2019	53.89487
2020	54.29741
2021	54.69179
2022	55.39819