They offer something like 4200 positions every 2 weeks, or about 100k per year.

My understanding is that unless you're at the very top of the list (it's score based) you're likely to be waiting a long time.

Edit: For example the last drawing required you have a score of 471 or above. A 28 year old Indian person with a CS degree and 6 years of job experience who has perfect English scores would only have 441 points.