5 probably is just a factor of a small sample size. It's a small major. There's also some weird things going on with 17 (political science) and I would specula

5 probably is just a factor of a small sample size. It's a small major. There's also some weird things going on with 17 (political science) and I would speculate that it's due to the high rate of double majoring. AFAIK, there is only one 17 senior that isn't double majoring.