Year	Percent
1995	2.05502
1996	1.91339
1997	1.81806
1998	2.01018
1999	1.74413
2000	1.54021
2001	1.76499
2002	1.81955
2003	1.70886
2004	1.61684
2005	1.88293
2006	1.82073
2007	1.75218
2008	1.81424
2009	2.15491
2010	1.83894
2011	1.85641
2012	1.49588
2013	1.51937
2014	1.38818
2015	1.41849
2016	1.44863
2017	1.43197
2018	1.38557
2019	1.33855
2020	1.31645
2021	1.26101