Year	Percent
2000	75.62825
2001	75.84184
2002	76.05543
2003	76.26902
2004	76.48262
2005	76.69621
2006	76.9098
2007	77.12339
2008	77.33699
2009	77.55058
2010	77.76417
2011	77.97777
2012	78.19136
2013	78.40495
2014	78.61854
2015	78.83214
2016	79.04573
2017	79.25932
2018	79.47291
2019	79.68651
2020	79.9001
2021	80.11369
2022	80.32728