Answer:
1. Emilio Aguinaldo. (1899–1901)
2. Manuel L. Quezon (1935–1944)
3. José P. Laurel (1944–1945)
4. Sergio Osmeña (1944–1946)
5. Manuel Roxas (1946–1948)
6. Elpidio Quirino (1948–1953)
7. Ramon Magsaysay (1953–1957)
8. Carlos P. Garcia (1957–1961)
9. Diosdado P. Macapagal (1961–1965)
10. Ferdinand Marcos (1965–1986
11. Corazon Aquino (1986–1992)
12. Fidel V. Ramos (1992–1998)
13. Joseph Estrada (1998–2001)
14. Gloria Macapagal Arroyo (2001–2010)
15. Benigno Aquino III (2010–2016)
16. Rodrigo Duterte (2016–2021)
