Year	Percent
2000	47.52154
2001	48.2519
2002	48.97944
2003	49.70406
2004	50.42562
2005	51.14309
2006	51.8573
2007	52.56813
2008	53.27547
2009	53.97832
2010	54.67747
2011	55.37487
2012	56.06989
2013	56.7631
2014	57.45347
2015	58.14116
2016	58.82594
2017	59.50757
2018	60.18618
2019	60.86078
2020	61.53187
2021	62.19884
2022	62.86178