Year	Percent
2000	77.11346
2001	76.96641
2002	76.8195
2003	76.67272
2004	76.52609
2005	76.37959
2006	76.23324
2007	76.08702
2008	75.94094
2009	75.795
2010	75.64919
2011	75.50353
2012	75.358
2013	75.21262
2014	75.06737
2015	74.92226
2016	74.77729
2017	74.63246
2018	74.48776
2019	74.34321
2020	74.19879
2021	74.13474
2022	74.07068