Year	% of population
2007	18.6692280671325
2008	23.3278660448449
2009	32.0514807991371
2010	48.659304904221
2011	44.6808940282075
2012	88.462896578672
2014	47.5544690536431
2015	88.8464072807895
2016	88.9239420218797
2017	82.5288396462438
2018	81.5259384811188
2019	83.6861513145593