<prompt> Daataa lama baayina ummata addunyaa wajjin walqabatu barbaadi.nan  <response>: 1 Akka gabaasa Dhaabbata Mootummoota Gamtoomanitti World Population Prospects 2019 lakkoofsi ummata addunyaa bara 2019 biliyoona 7.7 kan gahe yoo tau, bara 2050tti gara biiliyoona 9.7, bara 2100tti ammoo biiliyoona 10.9 akka guddatu eegama.2 Saffisni guddina baayina ummata addunyaa bara 2019tti bara 1960moota irraa eegalee haalaan hirachaa dhufeera. Guddinni baayina ummataa waggaa bara 1968 2.09n sadarkaa olaanaa irra kan gahe yoo tau, bara 2020tti ammoo 1.05 akka tau tilmaamameera, kunis gatii olkaaa walakkaa jechuun ni dandaama. Yoo adeemsi amma jiru itti fufe, guddinni baayina ummata addunyaa waggoota kurnan dhufan keessatti hirachuu akka itti fufu tilmaamameera, dhuma irratti dhuma jaarraa kanaatti waggaatti 0.1 akka gau tilmaamameera UN World Population Prospects 2019. 