Instruct: What is the average Caboolture population with a Redcliffe population greater than 27,327, a Pine Rivers population greater than 119,236, and a total population greater than 344,878 after 1971?
Output: SELECT AVG (Caboolture) FROM table WHERE (Redcliffe) > 27,327 AND (Pine Rivers) > 119,236 AND Year > 1971 AND Population (Total) > 344,878