Year	Percent
2000	29.20369
2001	30.43603
2002	31.05183
2003	31.62013
2004	32.14132
2005	32.61811
2006	33.05024
2007	33.43745
2008	33.77931
2009	34.07573
2010	34.32662
2011	34.53138
2012	34.68993
2013	34.80212
2014	34.86743
2015	35.81527
2016	35.83489
2017	35.85662
2018	35.88046
2019	35.90668