I found the pie chart - from Quilter's World Magazine, probably about a year ago. "Your Favorite Traditional Quilt Blocks."
37% Log Cabin
9% Nine Patch,7% Double Wedding Ring, 5% snail's Trail, 3% Dresden Plate-Irish Chain-Sunboneet Sue; 2% Card Trick-Chrin Dash-FriendshipStar-LaMoyne Star-Pinwheel-Sawtooth Star. 1% Drunkard's Path, Carpenter's Wheel, and many, many more.