MANILA - Presidential frontrunner Davao City Mayor Rodrigo Duterte has remained the most talked-about Philippine presidential candidate on Facebook, according to the social media giant on Friday.

Based on data on Facebook conversations surrounding the elections, a total of 20.8 million people have engaged in Philippine election-related conversations, generating 229 million interactions.

The report covered the period from November 20, 2015 to May 2, 2016 and is limited to users from the Philippines only. The data does not say if the conversations are positive or negative regarding the candidate.

Duterte led the pack of presidential candidates with more than 83% of people engaged in election-related conversations sharing their thoughts about the tough-talking city mayor.

Former Interior Secretary Mar Roxas came in second place, with 57% of discussions mentioning him. Senator Grace Poe placed third with 50%, followed by Vice President Jejomar Binay and Senator Miriam Defensor Santiago with 33% and 27%, respectively.

Among the vice-presidential candidates, Duterte's running mate Senator Alan Peter Cayetano was the most-discussed with 42%, according to Facebook data.

Representative Leni Robredo trailed closely at second place with 37%, followed by Senator Ferdinand Marcos with 35%. Senator Francis Escudero receivd 28%, while Senator Antonio Trillanes got 24%. Senator Gringo Honasan is at last place with only 3%.

Among the election-related topics, most discussed were transparency with 84% of conversations, economy with 41%, education with 32%, social welfare with 32%, defense and foreign policy with 24%, and health with 20%. Landing in sixth place is infrastructure with 10%, while environment and trafficking had 4% and 2%, respectively.

Facebook said election-related conversations are defined as “any post or comment that contains highly specific and targeted keywords or hashtags related to either the election itself, a candidate, a party, or a specific topic that might be playing a large role in the election itself.”

The percentages will add up to more than 100% because Facebook users may engage in conversations on more than one presidential candidate.