Teen births fell again in the U.S. in 2010, reaching its lowest point since record-keeping began in 1940. The rate fell 9% to about 34 per 1,000 girls ages 15 through 19. The decline was seen among all racial and ethnic groups.

The Centers for Disease Control and Prevention previously reported that U.S. births by mothers of all ages had dropped in 2010 for the third straight year.

Since 1991, the overall teen rate has dropped by 44%. Without that decline, the authors calculated, there would have been 3.4 million more babies born to girls by 2010.

Source: Wall Street Journal
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