Year	Percent
1990	0.674
1991	0.654
1992	0.601
1993	0.598
1994	0.583
1995	0.572
1996	0.574
1997	0.567
1998	0.566
1999	0.55
2000	0.554
2001	0.577
2002	0.642
2003	0.676
2004	0.709
2005	0.724
2006	0.734
2007	0.747
2008	0.778
2009	0.847
2010	0.895
2011	0.901
2012	0.911
2013	0.929
2014	0.954
2015	0.948
2016	0.903
2017	0.878
2018	0.864
2019	0.855
2020	0.847
2021	0.838
2022	0.831
2023	0.823
2024	0.814