Year	Percent
2000	1.73903
2001	2.52275
2002	3.33949
2003	4.17189
2004	5.01993
2005	5.88362
2006	6.76296
2007	7.65795
2008	8.5686
2009	9.49489
2010	10.43684
2011	11.39443
2012	12.36767
2013	13.35657
2014	14.36112
2015	15.38131
2016	16.41716
2017	17.46865
2018	18.5358
2019	19.6186
2020	20.71705
2021	21.64945
2022	22.58186