Below is an instruction that describes a task. Write a response that appropriately completes the request.

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

### Inputs:
table_name: table, columns: ['Election', 'candidates', 'seats won', 'votes', '% of vote']

### Response:
SELECT COUNT candidates FROM table WHERE % of vote = 0 AND Election = 1999 AND seats won > 0