<P> This is a list of the current and former Philippine Presidents by previous Executive Experience before they became President of the Philippines . Executive experience is defined as having been something akin to where one is the top decision maker in a company, a regional constituency, a military unit, or something alike . Positions like Army General, Governor, Vice Governor, Mayor, Vice Mayor, Vice President of the Philippines, and Chief Executive Officer are included, though not limited to just that . </P> <Table> <Tr> <Th> Order </Th> <Th> President </Th> <Th> Previous Executive Experience </Th> </Tr> <Tr> <Td> </Td> <Td> Emilio Aguinaldo </Td> <Td> Mayor of Kawit, President of the Tejeros Revolutionary Government, President of the Biak - na - Bato Republic, Dictator of the Dictatorial Government & President of the Revolutionary Government </Td> </Tr> <Tr> <Td> </Td> <Td> Manuel L. Quezon </Td> <Td> Governor of Tayabas </Td> </Tr> <Tr> <Td> </Td> <Td> José P. Laurel </Td> <Td> Secretary of the Interior </Td> </Tr> <Tr> <Td> </Td> <Td> Sergio Osmeña </Td> <Td> Governor of Cebu, Secretary of Public Instruction, Vice President of the Philippines </Td> </Tr> <Tr> <Td> </Td> <Td> Manuel Roxas </Td> <Td> Governor of Capiz </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Elpidio Quirino </Td> <Td> Vice President of the Philippines </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Ramon Magsaysay </Td> <Td> Military Governor of Zambales, Secretary of Department of National Defense </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Carlos P. Garcia </Td> <Td> Governor of Bohol, Vice President of the Philippines </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Diosdado Macapagal </Td> <Td> Vice President of the Philippines </Td> </Tr> <Tr> <Td> 10 </Td> <Td> Ferdinand E. Marcos </Td> <Td> No previous executive experience </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Corazon C. Aquino </Td> <Td> No previous executive experience </Td> </Tr> <Tr> <Td> 12 </Td> <Td> Fidel V. Ramos </Td> <Td> Chief of Staff of the Armed Forces of the Philippines, Secretary of Department of National Defense </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Joseph Ejercito Estrada </Td> <Td> Mayor of San Juan, Metro Manila, Vice President of the Philippines, Chairman of the Presidential Anti-Crime Commission </Td> </Tr> <Tr> <Td> 14 </Td> <Td> Gloria Macapagal - Arroyo </Td> <Td> Vice President of the Philippines, Secretary of Department of Social Welfare and Development, Undersecretary of the Department of Trade and Industry, Assistant Secretary of the Department of Trade and Industry </Td> </Tr> <Tr> <Td> 15 </Td> <Td> Benigno S. Aquino III </Td> <Td> No previous executive experience </Td> </Tr> <Tr> <Td> 16 </Td> <Td> Rodrigo Duterte </Td> <Td> Mayor of Davao City, Vice Mayor of Davao City </Td> </Tr> </Table> <Tr> <Th> Order </Th> <Th> President </Th> <Th> Previous Executive Experience </Th> </Tr>

How many presidents do we have in the philippines
find me the text answering this question