Year	%
2000	0.858830918793885
2001	0.850205508861549
2002	0.808943402811911
2003	0.73734461507183
2004	0.758021809417295
2005	0.737212906621685
2006	0.685289438429042
2007	0.673133369342584
2008	0.660631820480257
2009	0.646116644011558
2010	0.604684271642255
2011	0.595255136433407
2012	0.560995032537069
2013	0.560130877759237
2014	0.530674416218434
2015	0.527928403024871
2016	0.514835083178865
2017	0.512648169812826
2018	0.501263532716855
2019	0.499245191308451
2020	0.483347514805271