Through 2018: Includes students who began studying abroad in previous fiscal years. From 2019: Includes international students in the total count. From 2020: Includes students participating online in programs offered by overseas universities and other institutions.

Excludes students participating online in programs offered by overseas universities and other institutions.

2020–2021: The number of students who actually traveled abroad to study decreased significantly due to travel advisories against overseas travel issued in response to the spread of COVID-19.

The establishment, reorganization, renaming, and abolition of organizations are reflected according to the circumstances of each fiscal year. For details, see Organizational Changes.

Students participating in overseas university programs jointly organized by institutions in multiple countries are counted under "Other."