Official Development Assistance (ODA) is public funds used for international cooperation activities by governments and related agencies whose primary objective is the development of developing regions. Using the database of ODA funds for health in OECD Development Assistance Committee member countries, we have visualized the flow of ODA in the health sector to propose effective and strategic ways to contribute to and involve international organizations and institutions in the health sector. 

This graph presents the comparative proportions of funding the multilateral development system. This system is either funded by contributions to multilateral agencies or as earmarked aid by multilateral agencies. Contribution to multilateral agencies is core funding which multilateral agencies can use for their activities.

The detail is following；

https://oda.ncgm.go.jp/en/results/oda3.html