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

### Instruction:
How many standards are there, when the launch date was 17.04.2006?

### Inputs:
table_name: table, columns: ['Carrier', 'Standard', 'Frequency', 'Connection speed', 'Launch date (dd.mm.yyyy)']

### Response:
SELECT COUNT Standard FROM table WHERE Launch date (dd.mm.yyyy) = 17.04.2006