CREATE TABLE table_537 ("Year" FLOAT, "Population  ( Region total ) " FLOAT, "Population  ( Maryborough ) " FLOAT, "Population  ( Hervey Bay ) " FLOAT, "Population  ( Woocoo ) " FLOAT, "Population  ( Tiaro ) " FLOAT)

Name the most year when population of woocoo is 2700
SELECT MAX("Year") FROM table_537 WHERE "Population (Woocoo)" = '2700'
SELECT MAX("Year") FROM "table_537" WHERE "Population (Woocoo)" = '2700'