Year	Percent
2000	22.70211
2001	23.17449
2002	23.64688
2003	24.11926
2004	24.59165
2005	25.06403
2006	25.53642
2007	26.0088
2008	26.48119
2009	27.38811
2010	28.31026
2011	29.24764
2012	30.20025
2013	31.16809
2014	32.15117
2015	33.14947
2016	34.16301
2017	35.19178
2018	36.23578
2019	37.29501
2020	38.36947
2021	39.45917
2022	39.45917