Year	Percent
2000	8.60567
2001	9.00425
2002	9.42523
2003	9.87677
2004	10.34007
2005	10.81469
2006	11.30074
2007	11.7983
2008	12.30712
2009	12.82674
2010	13.35743
2011	13.89912
2012	14.45171
2013	15.01474
2014	15.58946
2015	16.1754
2016	16.77249
2017	17.38065
2018	17.9998
2019	18.62985
2020	19.27072
2021	19.38161
2022	19.4935