Year	%
2001	34.8743
2002	33.84939
2003	35.74619
2005	34.97603
2006	33.19988
2007	33.40643
2008	31.27081
2009	26.31854
2010	26.004
2011	31.77819
2012	25.99924
2014	22.61866
2016	20.97824
2018	26.8368
2020	26.81574
2021	25.61438