Table: air_supply_1976
Columns: date
region
label
format
catalog

Question: WHAT IS THE AVERAGE DATE FOR CBS LABEL, IN AUSTRALIA, AND SBP 241031 FOR CATALOG?
SQL: SELECT AVG("date") FROM air_supply_1976 WHERE "label" = 'cbs' AND "region" = 'australia' AND "catalog" = 'sbp 241031'

Question: WHAT DATE HAS A CATALOG OF 486553.4?
SQL: SELECT MAX("date") FROM air_supply_1976 WHERE "catalog" = '486553.4'

Question: WHAT IS THE LOWEST DATE FOR KOREA, IN CD FORMAT?
SQL: SELECT MIN("date") FROM air_supply_1976 WHERE "region" = 'korea' AND "format" = 'cd'