@SlackerMomMD I would attribute the increased yield to the larger percentage of the class filled via ED, 1012 in 2015 vs. 524 in 2005, or roughly double at approximately 50% vs. 25% of the enrolling class. Since ED is close to 100% yield, without running the numbers exactly, it would have the effect of increasing overall yield, e.g., if the university attempted to fill 100% of its class via ED, it would have nearly a 100% yield and would need to only give a few admittances in RD. Total yield in this extreme example would be just shy of 100%.