Year: Champ, Runner-Up, Semifinalists
2009: BU, Miami, Vermont, Bemidji State
2010: BC, Wisconsin, Miami, RIT
2011: UMD, Michigan, UND, Notre Dame
2012: BC, Ferris State, Minnesota, Union
2013: Yale, Quinnipiac, St. Cloud, UMass-Lowell
2014: Union, Minnesota, UND, BC
2015: Providence, BU, UND, Omaha
Most appearances in that window: UND 3, BC 3, BU 2, Miami 2, Union 2, Minnesota 2, remainder had one each
Teams appearing in successive years: UND, Miami
I'm pretty sure Myers picked that window because UND appeared in 2005, 2006, 2007, and 2008.