In fact they dropped below $30 per pound U3O8 (in 1975 dollars) three years after the study was completed and have for almost a quarter of a century been below half that value.
事实上，在该项研究完成之后3年，铀价下跌到每磅八氧化三铀低于30美元（按1975年美元计），并且近25年来一直低于该价格的一半。