I would encourage others to check out the National Center for Education Statistics for accurate data. Every school has to report the number of Transfer students to the Govt. For example the data on Chicago is not correct. Chicago reported only 28 “transfers in” for Fall 2015. It also reported a retention rate of 100% for students who entered in Fall 2014. This means that the transfer percentage would have to be minuscule, not 13%
Vanderbilt also reported only 210 transfers in not 419 as reported here.