It assigns a happiness score on a scale of zero to 10, based on an average of data over a three-year period. This latest edition was completed before the Russian invasion of Ukraine.
Igenera amanota yibyishimo ku gipimo cya zeru kugeza 10, ukurikije impuzandengo yamakuru mugihe cyimyaka itatu. Iyi nyandiko iheruka yarangiye mbere y’Uburusiya butera Ukraine.