President Obama’s campaign ease Europe’s refugee pressure resulted in over 18,000 Syrians, more than half adults, coming into the United States, according to a new report.

Thanks to the administration’s success in speeding up the refugee resettlement process before the president leaves office, the U.S. welcomed 18,007 Syrians from between October 1, 2011 and December 31, 2016. A majority came in last year.