What is the original source, and more importantly, methodology, of the data?<p>It appears to reference [0], a 2017 publication, which itself references [1] a 2015 publication, which is a bit of a dead end from a layperson perspective.<p>[0] <a href="https://www.who.int/publications/i/item/depression-global-health-estimates" rel="nofollow">https://www.who.int/publications/i/item/depression-global-he...</a>
[1] <a href="https://ghdx.healthdata.org/record/ihme-data/gbd-2015-life-expectancy-all-cause-and-cause-specific-mortality-1980-2015" rel="nofollow">https://ghdx.healthdata.org/record/ihme-data/gbd-2015-life-e...</a>