Year	Percent
2000	77.59413
2001	77.48568
2002	77.36655
2003	77.23673
2004	77.09622
2005	76.94502
2006	76.78313
2007	76.61056
2008	76.4273
2009	76.23336
2010	76.02872
2011	75.8134
2012	75.5874
2013	75.3507
2014	75.10332
2015	74.84525
2016	74.5765
2017	74.29705
2018	74.00692
2019	73.70611
2020	73.3946
2021	73.07241
2022	73.07241