Year	Percent
2000	29.77338
2001	30.46195
2002	31.15183
2003	31.84302
2004	32.53552
2005	33.22933
2006	33.92445
2007	34.62088
2008	35.31861
2009	36.01766
2010	36.71801
2011	37.41968
2012	38.12265
2013	38.82694
2014	39.53253
2015	39.5713
2016	39.61007
2017	39.64884
2018	39.68761
2019	39.72639
2020	39.72639
2021	39.72639
2022	39.72639