user: ### NOW ANSWER:
Question: Name the average population hervey bay with population maryborough more than 11415 and population region total less than 48308 and population tiaro less than 2066 and population woocoo of 491
Columns: ['Year', 'Population (Region total)', 'Population (Maryborough)', 'Population (Hervey Bay)', 'Population (Woocoo)', 'Population (Tiaro)']
Types: ['real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1933.0, 22170.0, 11415.0, 6835.0, 777.0, 3143.0]
SQL:

assistant: SELECT AVG("Population (Hervey Bay)") FROM "Table" WHERE "Population (Maryborough)" > 11415.0 AND "Population (Region total)" < 48308.0 AND "Population (Tiaro)" < 2066.0 AND "Population (Woocoo)" = 491.0;