Year	Percent
2000	1.91478
2001	2.31825
2002	2.72173
2003	3.1252
2004	3.52867
2005	3.89152
2006	4.24603
2007	4.5922
2008	4.93003
2009	5.25953
2010	5.58069
2011	5.89352
2012	6.19801
2013	6.49416
2014	6.78197
2015	7.06145
2016	7.33259
2017	7.59539
2018	7.84985
2019	8.09598
2020	8.33377
2021	8.67055
2022	9.00733