user: Question: How many values of first elected are for district 16?
Columns: ['District', 'Name', 'Party', 'Hometown', 'First Elected', 'Towns Represented']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Lt-Gov', 'Jari Askins', 'Dem', 'Duncan', 2006.0, 'President of Senate']
SQL:

assistant: SELECT COUNT("First Elected") FROM "Table" WHERE "District" = '16';