How many values of first elected are for district 16?
CREATE TABLE table_name_91 (first_elected VARCHAR, district VARCHAR)
SELECT COUNT(first_elected) FROM table_name_91 WHERE district = "16"
### Context: CREATE TABLE table_name_91 (first_elected VARCHAR, district VARCHAR) ### Question: How many values of first elected are for district 16? ### Answer: SELECT COUNT(first_elected) FROM table_name_91 WHERE district = "16"