Year	Percent
2000	44.41273
2001	43.52352
2002	42.64209
2003	41.76844
2004	40.90257
2005	40.04447
2006	39.19416
2007	38.35163
2008	37.51687
2009	36.6899
2010	35.8707
2011	35.05928
2012	34.25565
2013	33.45979
2014	32.67171
2015	31.89141
2016	31.11889
2017	30.35414
2018	29.59718
2019	28.848
2020	28.10659
2021	27.37297
2022	27.37297