1) Find academic papers on the subject, see where they got their data 2) Data-only search sites like Zanran, or set google to search only for .xls 3) Question and answer sites, like r/​datasets
1) Find academic papers on the subject, see where they got their data 2) Data-only search sites like Zanran, or set google to search only for .xls 3) Question and answer sites, like r/​datasets