user: Question: Name the least population 1.1.2008 with population per square km of 1.957 and population 1.1.2006 less than 12.67
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 MIN("Population 1.1.2008") FROM "Table" WHERE "Population per square km" = 1.957 AND "Population 1.1.2006" < 12.67;