user: Question: What is the population of the place that has an area (km²) of 30528, and a GDP (billion US$) larger than 58.316?
Columns: ['Member countries', 'Population', 'Area (km²)', 'GDP (billion US$)', 'GDP per capita (US$)']
Types: ['text', 'real', 'real', 'real', 'text']
Sample row: ['Belgium', 9052707.0, 30528.0, 58.316, '$46,878']
SQL:

assistant: SELECT "Population" FROM "Table" WHERE "Area (km²)" = 30528.0 AND "GDP (billion US$)" > 58.316;