Year	%
2000	27.193724665423815
2001	26.882625242975983
2002	26.710473411473934
2003	26.578886760981362
2004	26.387674425841475
2005	26.333401597187603
2006	26.139733363305343
2007	25.843433445827124
2008	25.511623741717884
2009	25.185778010013866
2010	24.85164267879916
2011	24.477826037430674
2012	24.16145335485098
2013	23.89575747288547
2014	23.665261002255797
2015	23.387236509765543
2016	23.161777322738374
2017	22.961984742646248
2018	22.830022696486367
2019	22.645464282951224