Year	Percent
2000	27.84955
2001	27.79539
2002	28.10001
2003	28.40324
2004	28.70506
2005	29.00548
2006	29.3045
2007	29.60212
2008	29.89834
2009	30.19316
2010	30.48657
2011	30.77859
2012	31.0692
2013	31.35841
2014	31.64623
2015	31.93264
2016	32.21765
2017	32.50126
2018	32.78346
2019	33.06427
2020	33.34368
2021	33.62168
2022	33.89828