Year	Percent
2000	2.22355
2001	2.48346
2002	2.75502
2003	3.0382
2004	3.33301
2005	3.63945
2006	3.95753
2007	4.28724
2008	4.62857
2009	4.98154
2010	5.34614
2011	5.72238
2012	6.11024
2013	6.50973
2014	6.92086
2015	7.34361
2016	7.778
2017	8.22402
2018	8.68167
2019	9.15095
2020	9.63187
2021	9.63187
2022	9.63187