Fewer than half of Americans now believe the birth of Jesus was a miracle stemming from the supernatural conception of Mary by the Holy Spirit, according to new research from the American Bible Society.

In the seventh chapter of its 16th annual State of the Bible report released Thursday, the American Bible Society highlights the experiences of Americans with the supernatural, including beliefs in God, Heaven, Hell, Satan, angels and demons. The data included responses from 2,649 Americans collected from Jan. 8 to 27.

Overall, 171 million Americans, about 62% of U.S. adults, believe in the supernatural, ABS said.