As expected – no, there is a nice easily visible downward trend. It’s not the inefficiency of the USA making it one of the biggest polluters, it’s just the amount of production, while China has plenty of space to improve. There are many outliers above the general trend, and they’re mostly Middle East countries with oil plus one pink Brunei, also with oil and Estonia (probably with oil shale?) just beside Saudi Arabia.

What: CO2 emissions (kg per 2010 US$ of GDP) and GDP per capita. Colours mean regions by WB.
When: 2014 for emissions, and 2018 for GDP. I did not match the time this time 🙁
Where: 187 countries of the world
Source: WB