import dependence ratio; degree of dependence on imports
Economic term measuring how much a country relies on foreign goods, often expressed as a percentage.
Japan's food import dependence ratio is high.
Policies to reduce the energy import dependence ratio are being called for.
自給率 is the self-sufficiency ratio, the opposite concept: how much demand is met by domestic production.
Compound of 輸入 (import) + 依存 (dependence) + 度 (degree). The meaning is transparent from its parts.