Year	Percent
2000	20.98598
2001	21.9767
2002	22.96743
2003	23.95816
2004	24.94889
2005	25.93962
2006	26.93035
2007	27.92108
2008	28.83981
2009	29.75361
2010	30.66248
2011	31.56642
2012	32.46542
2013	33.35948
2014	34.24861
2015	35.13281
2016	36.01207
2017	36.8864
2018	37.7558
2019	38.62026
2020	39.47979
2021	40.33438
2022	41.29057