currently only the Education database is in this repo.
source: http://data.uis.unesco.org/
CSV format and Excel format have total datapoints limitation on UIS's API, so we should use SDMX format to export all data.
- go to UIS.stat http://data.uis.unesco.org/
- choose "Education (full dataset)" in left sidebar
- in Export menu, choose "SDMX (XML)" format
- choose "Generic format" and download both SDMX and DSD file.
- xmltodict
- lxml