Year	Percent
1995	9.87952
1996	10.9424
1997	9.4219
1998	7.66213
1999	6.38289
2000	5.58605
2001	4.8743
2002	4.77513
2003	4.42285
2004	4.1729
2005	4.32852
2006	3.86424
2007	3.47541
2008	3.2839
2009	2.53647
2010	3.02379
2011	3.49019
2012	3.97946
2013	3.54492
2014	3.42319
2015	3.42068
2016	3.10876
2017	3.50751
2018	2.8796
2019	3.10019
2020	3.51327
2021	3.39631
2022	3.97433