user: Question: Name the least age 40-49
Columns: ['Date of Sterilization', 'Age 10-19', 'Age 20-29', 'Age 30-39', 'Age 40-49', 'Age 50-59', 'Age Unknown', 'Total']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Jan 1929 - Jun 1935', 87.0, 87.0, 42.0, 4.0, 2.0, 1.0, 223.0]
SQL:

assistant: SELECT MIN("Age 40-49") FROM "Table";