Year	Percent
1990	74
1991	74.06
1992	75.379
1993	76.568
1994	77.66
1995	78.052
1996	78.842
1997	79.568
1998	80.785
1999	80.711
2000	80.488
2001	81.458
2002	82.3
2003	83.1
2004	83.865
2005	84.602
2006	85.325
2007	86.01
2008	85.935
2009	86.384
2010	86.273
2011	86.058
2012	86.017
2013	85.44
2014	84.867
2015	84.224
2016	84.185
2017	84.451
2018	84.704
2019	84.944
2020	85.173
2021	85.39
2022	85.598
2023	85.795
2024	85.978
2025	86.144
2026	86.293
2027	86.431
2028	86.56
2029	86.686
2030	86.812