Year	%
2001	27.61394
2002	42.29249
2005	44.16889
2007	44.06305
2008	43.36392
2009	36.36648
2010	30.6754
2011	28.3725
2013	21.72886
2015	17.91937
2016	17.32403
2017	18.97411
2018	17.19217
2021	20.02873