Year	Percent
2000	6.45456
2001	7.66547
2002	8.88565
2003	10.13624
2004	11.3353
2005	12.53382
2006	13.73176
2007	14.9288
2008	16.12504
2009	17.31962
2010	18.51297
2011	19.70431
2012	20.89372
2013	22.08032
2014	23.26311
2015	24.44164
2016	25.61502
2017	26.78297
2018	27.94477
2019	29.09939
2020	30.2468
2021	30.43225
2022	30.61795