What is GDP of San Marino?

As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of San Marino is USD 1,538 million. Currently (2019), the world rank of San Marino is 171 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of San Marino is USD 1,633 (2017) million. As per World Bank Estimates, the global rank of San Marino is 165.

San Marino GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of San Marino is USD 2,072 Million.  San Marino on this basis has a global rank of 171.