What is every Big Ten Conference team's record against the over/under line as an underdog since the 2006-2007 season?

Definitions
Team Over Record Over % Under % Total +/-
Ohio St 87-76-1 53.4% 46.6% +1.7
Penn St 162-147-2 52.4% 47.6% +1.4
Michigan 111-101-7 52.4% 47.6% +0.2
Purdue 75-69-0 52.1% 47.9% +2.3
Nebraska 158-152-4 51.0% 49.0% +0.8
Rutgers 161-163-4 49.7% 50.3% +0.5
Indiana 111-114-5 49.3% 50.7% +0.1
Maryland 107-112-3 48.9% 51.1% +0.2
Iowa 119-126-3 48.6% 51.4% +0.6
Minnesota 134-142-3 48.6% 51.5% +0.3
Michigan St 69-74-3 48.3% 51.8% -0.1
Northwestern 137-158-5 46.4% 53.6% -0.1
Illinois 98-119-3 45.2% 54.8% -1.1
Wisconsin 71-91-2 43.8% 56.2% -1.1