Money & Business: Ranking the Largest Airports - US News and World Report

I've just figured out why my flying experiences over the past year or more have been so "miserable". According to a US News and World Report article which ranks airports misery index, I fly through 2 of their top 6 on a regular basis. Their #1 is DTW and #6 is MSP. It should be noted that those are both Northworst Airline hubs. DTW: Only 61% of their flights are on time, leaving 40% delayed. That's a problem.