Andi:
Their website wasn't ready for prime time. However, I (based on NO inside knowledge) wouldn't be surprised if the numbers for General (4-20) and Silver (21-74) are right. As for Gold, the only think to go by is the "dummy" letter you could get to via that link. That letter showed 196 total nights. That would lead me to think that Platinum probably started over 200 nights.
Since Dec 28 is a Wednesday, I hope mail gets to us by Saturday the 31st; or else I won't see the letter until the 6th.