Sigh... Just when I was starting to be proud because I had created this world-class spreadsheet that I was sure nobody else had thought of doing, you show me that mine is pure amateur.
I really like the columns yours shows for testing. About my only claim to fame is I can display just the countries I am interested in for country-to-country comparison.
Both of those sites are really good. Much better than my efforts. But I did have a lot of fun putting mine together, and learned a few things in the process.
tanstaafl.