Year	Percent
2000	34.88119
2001	36.01968
2002	37.14125
2003	38.25614
2004	39.3677
2005	40.47531
2006	41.57997
2007	43.17284
2008	44.78865
2009	46.42625
2010	48.08581
2011	49.76747
2012	51.47074
2013	53.17831
2014	54.89681
2015	56.63695
2016	58.39891
2017	60.18194
2018	61.98779
2019	63.81631
2020	65.66706
2021	67.53989
2022	68.61256