More statistics have been made available concerning Ivy League early admissions rates this year. Columbia's admissions rate this year is 20.4 percent, up from 19.6 percent a year ago. Columbia Admissions accepted 631 students, deferred 554, and rejected 3088. To those accepted, congratulations, to those deferred or rejected, best of luck.
Here's a graphic with all the admission statistics other Ivies have made available.