Supplement: GDP ranking of countries in the world
The gross domestic product calculated at the buyer's price is the sum of the added value created by all residents and producers in an economy plus any product tax, MINUS subsidies not included in the product value. The depreciation of assets or the loss and degradation of natural resources are not deducted in the calculation. Data are in current dollars.
The dollar data of GDP is converted from national currencies by using the official exchange rate of a certain year. For a few countries where the official exchange rate cannot reflect the effective exchange rate used in actual foreign exchange transactions, an alternative conversion factor is adopted.