His historic performance took place ten years before black singer Marian Anderson performed at the Metropolitan Opera in New York.

VOA: special.2010.03.07

What I did was I took the ten best-performing Internet funds and looked at the returns from 1997 to 2002.

我选了十个表现最好的投资网络的基金,分析它们1997至2002年的收益情况

耶鲁公开课 - 金融市场课程节选

Roger Ibbotson took a look at a larger group of funds -3,500--funds over a ten-year period and found survivorship bias at 2.9% per year and backfill bias at 4.6% per year.

罗杰·伊博森研究了更大的样本组,3500支基金10年间的表现,算出其生存偏差是每年2.9%,回填偏差是每年4.6%

耶鲁公开课 - 金融市场课程节选

Mister Berry says at least one hundred ten community colleges across the nation took part in the poetry competition.

VOA: special.2010.04.05

The group notes that a past fishing treaty took almost ten years to come into force.

VOA: special.2009.12.08

More than ten thousand students and more than five hundred robots took part in the competition.

VOA: special.2009.04.24