Year	Percent
1995	7.8417
1996	6.76051
1997	4.96719
1998	3.82055
1999	3.65791
2000	4.46532
2001	4.41346
2002	4.49884
2003	3.93534
2004	4.19691
2005	3.72327
2006	3.25597
2007	3.28393
2008	2.95482
2009	3.20982
2010	4.05728
2011	3.68792
2012	3.45474
2013	3.17366
2014	3.54078
2015	3.49468
2016	3.25954
2017	3.55239
2018	3.59516
2019	3.75975
2020	4.00184
2021	4.13637
2022	5.02198