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Amount the national debt grows per minute...
Number of teens who die per year in car crashes, a figure that has not dropped in the past decade. The holiday season is one of the deadliest times of the year...
...course, big families never really disappeared. Immigrants tend to have more kids, as do Mormons, some Catholics and a growing cadre of fundamentalist Christians. But in the U.S. today, the average number of children per mom is about 2, compared with 2.5 in the 1970s. While 34.3% of married women ages 40 to 44 had four or more children in 1976, only 11.5% did in 2004, according to the Current Population Survey. Though factoring in affluence can be statistically tricky, an analysis by Steven Martin, associate professor of sociology at the University of Maryland, shows that the proportion of affluent...
...per 60-watt bulb...
...per equivalent 15-watt bulb...