Fewer unintended pregnancies helped drive the abortion rate to a new low in 2017, according to a report published Wednesday by the Guttmatcher Institute.

The rate of abortions dropped to 13.3 abortions per 1,000 women in 2017, which translates to 862,320 abortions performed that year. The number is 7% lower than it was in 2014 and the lowest since the Supreme Court’s 1973 Roe v. Wade decision, which legalized abortion nationwide.