Year	% of population
2000	19.47875429661176
2001	19.685667372369988
2002	23.28404316241031
2003	23.541663977019724
2004	23.819266088126874
2005	24.260819672968672
2006	24.76077821474489
2007	25.324592033093975
2008	25.86010053076847
2009	26.35085212624213
2010	26.859962670587294
2011	26.94938223342232
2012	27.377100969155464
2013	27.70327138776722
2014	28.02529061785133
2015	28.425946472063032
2016	28.906863655650596
2017	29.440180358826556
2018	29.916076141295086
2019	30.426316514012925
2020	30.872943156406546
2021	30.94499836837807
2022	31.358454213351276