As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Qatar is USD 191,849 million. This GDP (nominal) is around 0.22% of Entire World’s GDP. Currently (2019), the world rank of Qatar is 52 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Qatar is USD 192,009 million. As per World Bank Estimates, the global rank of Qatar is 52.

Qatar GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Qatar is USD 365,835 Million. This is 0.26% of World. Qatar on this basis has a global rank of 49.

Republic of Congo GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Republic of Congo is USD 32,768 Million. This is 0.02% of World. Republic of Congo on this basis has a global rank of 128.