Responsive to this request, per discussions to identify existing reports that will contain the most comprehensive and consistent data across the various data elements sought, the Maryland State Department of Education calculates official graduation rates by cohort, as well as PARCC/MCAP performance rates, special services and demographics by school through data file downloads going back several years: https://msp2018.msde.maryland.gov/Graphs/#/DataDownloads/datadownload/3/17/6/13/XXXX.
For SAT data, an annual report to the Board of Education contains data as used by HCPSS, which are linked below for the past 10 years:
For PSAT data, we recently replied to a request that included existing reports produced by our Research Office and sent to the Board of Education that provide comprehensive data on PSAT available since 2013: https://mpia.hcpss.org/requests/2020-108.