For that indicator, International Monetary Fund provides data for Iran from 1980 to 2024. The average value for Iran during that period was 35.62 percent with a minumum of 16.11 percent in 1987 and a maximum of 46.67 percent in 2004.
See the global rankings for that indicator or
use the country comparator to compare trends over time.
Definition: Expressed as a ratio of total investment in current local currency and GDP in current local currency. Investment or gross capital formation is measured by the total value of the gross fixed capital formation and changes in inventories and acquisitions less disposals of valuables for a unit or sector.