"Figure 9: The level of uncertainty in population estimates increased through the decade ","" "Nearest 95% uncertainty interval range, as a percentage of the mean of the simulated mid-year estimates ","" "","" "Notes","" "Unit","Number of local authorities" "","" "Year","≥50%","20 to less than 50%","10 to less than 20%","5 to less than 10%","<5%" "2011","0","0","0","18","330" "2012","0","1","1","37","309" "2013","1","0","8","54","285" "2014","1","0","10","67","270" "2015","1","1","19","80","247" "2016","1","5","23","107","212" "2017","1","9","37","123","178" "2018","1","12","49","132","154" "2019","1","19","49","152","127"