- the translations generated from public-domain files are CC0-1.0
- the files derived from Unicode tables are close to CC0-1.0,
possibly except that there is a FileCopyrightText line
- the scripts are BSD-2-clause,
- the generated files are CC0 (I'm not *100%* sure about the
derived file CountryData_p.cpp, which lists countries and
country codes -- it **is** extracted from CLDR data which
is not CC0)
