user: Question: Name the sum of population 1.1.2008 for tønsberg and population 1.1.2006 more than 45.447
Columns: ['Urban area', 'Population 1.1.2009', 'Population 1.1.2008', 'Population 1.1.2007', 'Population 1.1.2006', 'Population per square km']
Types: ['text', 'text', 'real', 'text', 'real', 'real']
Sample row: ['Oslo', '876.391', 856.915, '839.423', 825.105, 3.009]
SQL:

assistant: SELECT SUM("Population 1.1.2008") FROM "Table" WHERE "Urban area" = 'tønsberg' AND "Population 1.1.2006" > 45.447;