Year	Percent
2002	26.7271
2003	27.99021
2004	29.25331
2005	30.51641
2006	31.7802
2007	33.04405
2008	34.30795
2009	35.5719
2010	36.83591
2011	38.09998
2012	39.3641
2013	40.62827
2014	41.8925
2015	43.15678
2016	44.42112
2017	45.68551
2018	46.94996
2019	48.21446
2020	49.47902
2021	50.74363
2022	52.00829