Year	% of population
2000	78.7969526329823
2001	78.8444087273012
2002	78.7321558022602
2003	78.6204883165209
2004	78.5089597388667
2005	78.3977909266277
2006	78.2869890454319
2007	78.1765461973574
2008	78.0664725970131
2009	77.9567604161389
2010	77.8474200523925
2011	77.7382114165589
2012	77.6333879662057
2013	77.5327772754214
2014	77.4366856925262
2015	77.5099086795109
2016	77.5869719420576
2017	77.6678841303996
2018	77.7348086961314
2019	77.8053341266311
2020	77.8796957700358
2021	77.9574071610837