user: Question: Name the total number of popular votes for mn attorney general in 1994
Columns: ['Year', 'Office', 'Candidate', 'Popular Votes', 'Percentage']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [1986.0, 'MN Attorney General', 'Derrick Grimmer', 16394.0, '1.17%']
SQL:

assistant: SELECT SUM("Popular Votes") FROM "Table" WHERE "Office" = 'mn attorney general' AND "Year" = 1994.0;