Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-M KEY PERFORMANCE FACTORS DECEMBER, 1997 Expected B Maturity 12/15/06 Blended Coupon 6.0745% Excess Protection Level 3 Month Average 5.14% December, 1997 5.33% November, 1997 4.76% October, 1997 5.32% Cash Yield 18.28% Investor Charge Offs 4.64% Base Rate 8.31% Over 35 Day Delinquency 4.81% Seller's Interest 16.15% Total Payment Rate 13.29% Total Principal Balance $ 34,934,847,924.76 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 5,643,513,406.27