The other metric that we follow very closely is credit spreads, and this is the difference between the yield between the sub-investment-grade bonds and the ten-year Treasuries, where the recent monthly returns in the stock market is favorable, when credit spreads are normal, compared to when spreads are very wide.

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Earl Axman was ten and in the fifth grade.

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In poorer states, one child in five drops out of school before sixth grade, compared with fewer than one in ten in richer states.

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Sometimes she has to grade 170 five-page papers while running a homeroom and planning ten lessons a week.

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It has a ten-year average annual return of 11% and a grade of A in both bull and bear markets.

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In the latest national assessment of school performance, 40% of American ten-year-olds were unable to read at their grade level.

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In Shanghai, for instance, rents this year have increased 18% for grade-A and grade-B buildings in the popular Puxi district as vacancies have fallen to a ten-year low of around 7%, according to Jones Lang LaSalle, a global property consultant.

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Since the mid-1990s, the proportion of 12th-grade pupils who believe smoking a packet or two of cigarettes a day carries a great risk has risen by about ten percentage points.

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