Year	% of population
2000	68.9994701532214
2001	69.0183483043697
2002	69.0372312290259
2003	69.0558719801947
2004	69.0363169907307
2005	68.8284022385387
2006	68.6211707238229
2007	68.4141324868191
2008	68.2075303530386
2009	68.0208726123557
2010	67.8420003480194
2011	67.6636236798997
2012	67.4865151670381
2013	67.3101584417687
2014	67.1348055517042
2015	66.9601921192507
2016	66.7906723674847
2017	66.6258224978669
2018	66.4660283082871
2019	66.3114089822237
2020	66.380897032912
2021	66.4543194490899
2022	66.531399868941