Percent of world GDP, 2018 - Country rankings:
The average for 2018 based on 190 countries was 0.45 percent.The highest value was in the USA: 20.88 percent and the lowest value was in Andorra: 0 percent. The indicator is available from 1980 to 2018. Below is a chart for all countries where data are available.
Measure: percent; Source: The World Bank
* indicates monthly or quarterly data series