Year	Percent
2000	45.58937
2001	47.4281
2002	49.26683
2003	51.10557
2004	52.76497
2005	54.13814
2006	55.48048
2007	56.79198
2008	58.07265
2009	59.32249
2010	60.54149
2011	61.72966
2012	62.88699
2013	64.01349
2014	65.10915
2015	66.17398
2016	67.20798
2017	68.21114
2018	69.18347
2019	70.12497
2020	71.03563
2021	71.91545
2022	72.76445