Year	%
2000	25.696445027058925
2001	25.506736437882196
2002	25.270245226572204
2003	24.728736776007555
2004	23.60629843418834
2005	23.652890265440515
2006	23.88591179370963
2007	24.047201927010413
2008	24.113710104660868
2009	23.95529678201028
2010	24.27094512016868
2011	24.271526407806174
2012	24.021877616392306
2013	23.188650629236374
2014	22.60014877180084
2015	23.02359467181312
2016	22.976518918430006
2017	22.657897338099513
2018	22.481789087020886
2019	22.36507240769312