Year	Percent
2000	69.60512
2001	70.08136
2002	70.55839
2003	71.0362
2004	71.51479
2005	71.99416
2006	72.47431
2007	72.95525
2008	73.43697
2009	73.91948
2010	74.40276
2011	74.88683
2012	75.37168
2013	75.85731
2014	76.34373
2015	76.83092
2016	77.3189
2017	77.80766
2018	78.29721
2019	78.78754
2020	79.27865
2021	79.77054
2022	80.26321