Year	Percent
2000	27.80198
2001	27.91515
2002	28.02674
2003	28.13675
2004	28.24517
2005	28.35201
2006	28.45726
2007	28.56093
2008	28.66301
2009	28.76351
2010	28.86242
2011	28.95975
2012	29.05549
2013	29.14965
2014	29.24222
2015	29.33321
2016	29.42262
2017	29.51044
2018	29.59667
2019	29.68132
2020	29.76439
2021	29.84587
2022	29.92576