Note: a lot of the countries on this graph are quite famous for not only refusing to implement any climate policy, but not having the necessary government control (or will) to do it even when agreeing to it.
Dividing it by country is misleading. The real divide is between the rich and poor. It's hard to create any emissions when you are only spending a few dollars a day. Meanwhile if I take a flight across the Atlantic then that is another five tonnes of carbon in the atmosphere no matter which country I start from.