I think your odds are personal, and not so much based on every # in # world pulls gets a pin.
I think this because many have pulled the sword back to back times.
From what I gather the odds appear to be a pull every 1/10. I had gone dry multiple times of 30-50 with no pulls, I have also had multiple back to back pulls and even 3-in-a-row. 1/10 appears to be the general rate though. I have had a sample size I would deem reasonable.
Also the wendy/ queen/ 2014(?) I would guess are between 10-20x rarer than normal pins.
This would mean at current rates car magic and every other easy to get pin would be awarded roughly 1/60 times (1/10 a chance to pull an easy 1 with 6 pins) and the Wendy and Queen and possibly 2014 but I don't know how rare that one is would be between 1/200-1/400 to get both.
As for the grizzly pin, I hope someone wins one one day, would be hilarious. I wonder how many pins have been pulled, wish we had stats. I'd probably say about 10-20k of the current batch pins have been pulled but that's just a rough guess. Nowhere near 1 million
Also the grizzly pin was stated to being 1/1 million AFTER pulling the sword from the stone. This would mean that the odds of actually obtaining it are likely to be 1/10 million unless I misinterpreted what Amy said.