Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-M KEY PERFORMANCE FACTORS JUNE, 1999 Expected B Maturity 12/15/06 Blended Coupon 5.1892% Excess Protection Level 3 Month Average 5.96% June, 1999 5.20% May, 1999 7.53% April, 1999 5.13% Cash Yield 17.46% Investor Charge Offs 5.06% Base Rate 7.19% Over 30 Day Delinquency 4.82% Seller's Interest 11.01% Total Payment Rate 13.71% Total Principal Balance $ 44,380,968,357.42 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 4,888,448,838.93