* indicates monthly or quarterly data series
To explore further:
Articles on the world economy:
Greece: Shadow economy, percent of GDP: For that indicator, Medina and Schneider (2018) provides data for Greece from 1991 to 2015. The average value for Greece during that period was 27.06 percent with a minumum of 23.2 percent in 2008 and a maximum of 29.76 percent in 1995. See the global rankings for that indicator or use the country comparator to compare trends over time.
Definition: The shadow economy as percent of total annual GDP. Detailed methodology of the estimations can be obtained from the following International Monetary Fund working paper by Leandro Medina and Friedrich Schneider (2018): Shadow Economies Around the World: What Did We Learn Over the Last 20 Years?