I'm planning on making a video that depicts a map of the locations of the deaths of migrants and refugees that attempt to cross the Mediterranean Sea as time progresses. In particular, I'd like to show the country of origin of those who passed away. The International Organization for Migration (IOM) has collected data on migrant deaths. In their methodology, it is explained which variables ought to be included in the data sets.
However, some variables seem to be missing. In particular, the “Country of Origin” and “Region of Origin” variables are excluded from the data sets. I've already contacted the IOM about this, but so far they haven't responded to my query.
Question: on which SE page should I ask questions on data regarding migrants and refugees? I've considered Politics.SE and Geography.SE, but I'm not sure whether these pages are appropriate.