Information from: “New speakers of Minderico: Dynamics and tensions in the revitalization process” (26-37 ch. 3) . Ferreira, Vera (2016) , Vera Ferreira and Peter Bouda · University of Hawaii Press
100 percent certain, based on the evidence available
Approximately 1000 passive speakers. "Minderico is now actively spoken by 150 speakers, but only 23 of them are fluent speakers. More than half of the fluent speakers are new speakers of the language."