Year	Percent
2000	18.8727
2001	19.35483
2002	19.84235
2003	20.33527
2004	20.83359
2005	21.33731
2006	21.84642
2007	22.36093
2008	22.88083
2009	23.40614
2010	23.93684
2011	24.47294
2012	25.01443
2013	25.56132
2014	26.11361
2015	26.6713
2016	27.23438
2017	27.80286
2018	28.37674
2019	28.95602
2020	29.54069
2021	29.54069
2022	29.54069