From Bloomberg News:

Abortion access in the U.S. has been vanishing at the fastest annual pace on record, propelled by Republican state lawmakers’ push to legislate the industry out of existence. Since 2011, at least 162 abortion providers have shut or stopped offering the procedure, while just 21 opened.
…

Typically defined by medical researchers as facilities that perform 400 or more abortions per year, the ranks peaked in the late 1980s at 705, according to the Guttmacher Institute, a New York-based reproductive-health research organization. By 2011, the most recent year for which Guttmacher has data, that number had fallen to 553.

Read the rest at http://www.bloomberg.com/news/articles/2016-02-24/abortion-clinics-are-closing-at-a-record-pace.