Well I have access to some archives if you're interested. And if we're going to compare teams, I'd like to join in...
Northwestern: Made Finals 5 out of past 23 years, won twice. Before that, you ask? NOTHING. Nada, zip, zilch....Didn't make finals EVER until 2003.
Irmo: Made finals 20 out of past 25 years, won THIRTEEN times. Want more details? Champions in 1982, 1987, 1988, 1989, 1990, 1993, 1995, 1996, 1997, 1998, 2000, 2003, 2004.
I hope these details answer your question, and if you would like more details about how much better than you Irmo is, all you have to do is ask!