I don't know what percent; our oil reserves in the U.S. are pretty small, so we're kind of lying somewhere inside-- maybe on this pink line.

我不知道具体占百分之几;,美国的石油储备量是微不足道的，所以我们可能是位于这附近-,也许在这条粉线上面。

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The other thing I have down is population, although the population of the U.S. has been pretty steady -that pink line looks awfully steady -and I have interest rates.

我还做了另外一个数据,就是人口数,而美国的人口数量一直都很平稳,粉色的那条线看起来非常平稳,我还做了利率的数据

耶鲁公开课 - 金融市场课程节选