Year	Percent
2000	27.55752
2001	28.98922
2002	30.42247
2003	31.85606
2004	33.29039
2005	34.72264
2006	35.99128
2007	37.25931
2008	38.52751
2009	39.79427
2010	41.06079
2011	42.32667
2012	43.59147
2013	44.85479
2014	46.11703
2015	47.37448
2016	48.62794
2017	49.87698
2018	51.12074
2019	51.39362
2020	51.66033
2021	51.92168
2022	52.17728