Year per 1,000 uninfected population ages 15-49 2014 0.15756312473741418 2015 0.1566600667098397 2016 0.15445079590148333 2017 0.1493808952757532 2018 0.1482863775345093 2019 0.14318422364220396 2020 0.13589224532725508