The rate that American women are having abortions has reached its lowest level since the U.S. Supreme Court legalized the procedure in the early 1970s.
Fewer than 17 abortions for every 1,000 women were recorded in 2011, the most recent year for which figures are available, according a paper (pdf) published by the Guttmacher Institute, which supports abortion rights.
That rate was only slightly higher than the one in 1973, when abortion became legal in the U.S.
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