To be more precise:
1/2 = ((Pts in games 12-22) - (Pts in games 1-11)) / 22 Team 1-11 Pts 12-22 Pts Dif 1/2 Vermont 4-6-1 9 7-3-1 15 +6 +.273 Cornell 3-6-2 8 5-4-2 12 +4 +.182 Dartmouth 2-7-2 6 5-6-0 10 +4 +.182 St. Lawrence 4-7-0 8 6-5-0 12 +4 +.182 Colgate 5-5-1 11 7-4-0 14 +3 +.136 Princeton 4-5-2 10 5-5-1 11 +1 +.045 Union 3-6-2 8 3-6-2 8 0 .000 Harvard 6-4-1 13 6-5-0 12 -1 -.045 Clarkson 8-2-1 17 6-3-2 14 -3 -.136 Brown 8-3-0 16 5-4-2 12 -4 -.182 RPI 7-4-0 14 3-5-3 9 -5 -.227 Yale 4-5-2 10 2-8-1 5 -5 -.227