myLot is not country specific. But if you want to know. I think it depends on the timings. You will find people from different countries at different times.
USA, UK, Australia, Philippines, Italy, Germany, France... India, Pakistan
I live in Canada, but am from the UK originally.
I suspect the league table is somewhat like 1) USA, 2) India, 3) UK, 4) Philippines, 5) Other parts of Europe, 6) joint Canada, Australia, and 8) South Africa.