How long is the waitlist for a Birkin bag?

Excuse me, could you please clarify for me how extensive or lengthy the queue or waiting list is for acquiring a Birkin bag? I'm genuinely interested in understanding the time frame involved in securing such a highly sought-after and exclusive item. I've heard whispers of its exclusivity and the fierce competition to own one, but I'm curious to know if there's a general estimate or range for the waiting period.