Year	Percent
2000	7.3192
2001	7.80248
2002	8.28576
2003	8.76904
2004	9.25232
2005	9.86258
2006	10.48545
2007	11.12092
2008	11.769
2009	12.42969
2010	13.10299
2011	13.78889
2012	14.4874
2013	15.19851
2014	15.92223
2015	16.65856
2016	17.4075
2017	18.16904
2018	18.94319
2019	19.72995
2020	20.52931
2021	21.11344
2022	21.69758