2013 (N=1), 2014 (N=2), or 2015 (N=1)2N=21 out of N=26 countries had survey estimates available in 2017, 2018, or 2019, with the remaining estimates obtained from 2016 (N=3), 2015 (N=2), or 2013 (N=1)3calculated as the population-weighted absolute/relative difference between earliest and most recent point estimate
