How long is the waiting list for a Birkin bag?

I'm curious to know, how extensive is the queue for acquiring a coveted Birkin bag? Is it a matter of mere weeks or does it stretch into months, even years? Given the exclusivity and demand surrounding these luxurious handbags, I'm eager to understand the realistic timeline one might face when hoping to secure such a prestigious accessory. Could you elaborate on the current state of the waiting list and any factors that might influence its length?