Fifty percent of the state's oyster production is shut down, there but for now prices remain steady.

VOA: standard.2010.05.08

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