Abortion rates among U.S. women in all age groups plunged to a decade low, with teens experiencing a greater decrease than older women, the Centers for Disease Control and Prevention said on Wednesday.

Statistics for 2015, the most recent year for which data is available, show the abortion rate was 11.8 abortions per 1,000 women aged 15 to 44. That is down 26 percent from 2006, when the study began and the rate was 15.9 abortions per 1,000 women.

Among teens aged 15 to 19, the rate decreased 54 percent from 2006 to 2015, the CDC said.