The student hackathon movement has definitely evolved super quickly in the last five years (as Swift says, 5 -> 150, or more than 100% growth year over year). I'd be curious to hear more stats about how hackathons in general have grown in the same time period.
It's amazing how far things have come. I remember when there were only maybe 5 student hackathons happening every year. Now there are like 150 and they're happening all over the world.