Caramba! A new survey says Mexican adults curse an average of 20 times a day, serving up about 1.3 billion swear words daily.

The survey of 1,000 adults by the Consulta Mitofsky polling firm says one in 10 Mexicans say they don't curse at all. Upper class citizens report swearing more than the poor, while people in the heavily Indian southern part of the country curse less than northerners.

The poll published Wednesday has a margin of error of 3.1 percentage points.

Poll respondents used their own judgment as to what constituted swear words, but almost all were harsher than "caramba," roughly the equivalent of "gosh!"

Mexico has 65 million adults over 18 out of a population of 107 million.