Year	Percent
2000	33.98142
2001	34.93721
2002	35.90373
2003	36.88093
2004	37.8688
2005	38.86724
2006	39.87635
2007	40.89604
2008	41.9264
2009	42.96715
2010	44.01846
2011	45.08019
2012	46.15246
2013	47.2349
2014	48.32671
2015	48.61944
2016	48.91162
2017	49.20331
2018	49.49443
2019	49.78482
2020	49.82417
2021	49.86127
2022	49.89623