[经] ratio of gross investment to gross national product
zǒng tóu zī duì guó mín zǒng chǎn zhí de bǐ lǜ ㄗㄨㄥˇ ㄊㄡˊ ㄗ ㄉㄨㄟˋ ㄍㄨㄛˊ ㄇㄧㄣˊ ㄗㄨㄥˇ ㄔㄢˇ ㄓˊ ㄉㄜ˙ ㄅㄧˇ lv4