Year	Percent
2000	37.55993
2001	37.53028
2002	37.49159
2003	37.44383
2004	37.38696
2005	37.32293
2006	37.25265
2007	37.17606
2008	37.09206
2009	37.00158
2010	36.90354
2011	36.79884
2012	36.68643
2013	36.56622
2014	36.43863
2015	36.3031
2016	36.15953
2017	36.0074
2018	35.84709
2019	35.67806
2020	35.50024
2021	35.3131
2022	35.11657