Year	Percent
2000	12.05343
2001	12.35389
2002	12.65739
2003	12.96353
2004	13.27253
2005	13.58418
2006	14.04298
2007	14.50851
2008	14.9805
2009	15.46139
2010	15.9512
2011	16.45018
2012	16.95789
2013	17.47481
2014	18.00048
2015	18.53513
2016	19.07878
2017	19.63094
2018	20.19209
2019	20.76197
2020	21.34058
2021	21.92789
2022	22.52338