Year % of population 2010 26.6709727746187 2011 26.7028996961572 2012 26.7346116816216 2013 26.7622242122335 2014 26.7872480942621 2015 26.8121284373722 2016 26.8369355015296 2017 26.8615292480397 2018 26.8863368585665 2019 26.9113600042049 2020 26.9365292179146 2021 26.9618397610214 2022 26.9873668279709