I'd say that the annual production varies from one year to another.
For this year, my guess is that JLC will be something between 35 / 45 000 pieces.
As for the NSA, the 1500 pieces will be produced in a 2 or 3 years time.
It was introduced in 2009, so my guess is that they will totally be produced in 2011.
But it doesn't mean nothing: A very sought after piece may be produced in 1500 piece,s it still can be rare as the demand will overcome, by far numbers, the offer.
While a LE of 100 pieces can be neglected by everybody.
So, the paradox is that, following this example, the 1500 LE may be rarer than the 100 pieces.
Best,
Nicolas