What is GDP of Korea, South?

As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Korea, South is USD 1,629,532 million. This GDP (nominal) is around 1.87% of Entire World’s GDP. Currently (2019), the world rank of Korea, South is 12 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Korea, South is USD 1,619,424 million. As per World Bank Estimates, the global rank of Korea, South is 12.