US Report on Giving charts from the Association for Healthcare Philanthropy (AHP) are free. Full Annual report from AHP (paid) describes the fund-raising, donor and allocation activities of hospitals and other healthcare organizations for their fiscal years ending during 2017. Data collected in 2018 and published 2019.
The Better Business Bureau (BBB) Wise Giving Alliance (give.org) outlines 20 standards for accreditation, and to assist donors in making sound giving decisions, fostering public confidence in charitable organizations. Boards and leaders of foundations that solicit funds from the public may find these standards helpful relative to governing, spending and disclosure of information to the public. National Charity Reports Index also at this site