Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_71 ( candidates VARCHAR, seats_won VARCHAR, _percentage_of_vote VARCHAR, election VARCHAR )

### Question ###
How many candidates had 0 percent of the vote in 1999?

### Accurate SQL ###

SELECT COUNT(candidates) FROM table_name_71 WHERE _percentage_of_vote = 0 AND election = 1999 AND seats_won > 0