Question: What is the highest week for the san diego chargers with an attendance that is less than 53455?
SQL: SELECT MAX("Week") FROM "2-18207174-2" WHERE "Opponent" = 'san diego chargers' AND "Attendance" < 53455.0;

Question: What is the highest attendance for december 3, 1972 after week 12?
SQL: SELECT MAX("Attendance") FROM "2-18207174-2" WHERE "Date" = 'december 3, 1972' AND "Week" > 12.0;