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

### Instruction:
How many womens doubles had champions the years broddi kristjánsson drífa harðardóttir won mixed doubles

### Inputs:
table_name: table, columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']

### Response:
SELECT COUNT Womens doubles FROM table WHERE Mixed doubles = Broddi Kristjánsson Drífa Harðardóttir