Of those 1500 FOs, there are a few “career FOs” that will likely never see the left seat, lots of FOs still bypass the upgrade, a few live abroad and don’t want to upgrade because they won’t be able to bid lines that allow them to keep living abroad comfortably. The average attrition remains 25-40/month, 5-10 retires a month, and 8-20 upgrades/month, I would say as long as we don’t lose an entire fleet, those upgrade time will remain fairly accurate