Did Paul really mean that he spoke in tongues more than anyone else in 1 Corinthians 14:18?

I believe that when Paul stated that he thanked God that he spoke with tongues more than the others that he actually meant that he knew more "foreign languages" than the others... otherwise, it would be virtually impossible to know that he "spoke in tongues" more than the others without taking a survey from the people or being around them all 24 hours per day.