Buried in the admittedly very nice article about Sister Rose Ann Fleming, who helps Xavier basketball players maintain a perfect graduation rate:

This season, 19 percent of the tournament teams have graduation rates below 40 percent...Across 36 sports monitored by the N.C.A.A., men's basketball has the lowest graduation rates, with fewer than two-thirds of players earning degrees.

Dook and UNC did very well in last year's analysis.