user: ### NOW ANSWER:
Question: What is the population (2008) when the capital was sanniquellie, created later than 1964?
Columns: ['map#', 'County', 'Capital', 'Population (2008)', 'Area', 'Created']
Types: ['real', 'text', 'text', 'real', 'text', 'real']
Sample row: [1.0, 'Bomi', 'Tubmanburg', 82036.0, 'sqmi (km2)', 1984.0]
SQL:

assistant: SELECT SUM("Population (2008)") FROM "Table" WHERE "Capital" = 'sanniquellie' AND "Created" > 1964.0;