Exhibit 99.14 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-M KEY PERFORMANCE FACTORS APRIL, 2001 Expected B Maturity 12/15/06 Blended Coupon 5.5530% Excess Protection Level 3 Month Average 7.62% April, 2001 7.28% March, 2001 7.94% February, 2001 7.64% Cash Yield 19.66% Investor Charge Offs 4.98% Base Rate 7.40% Over 30 Day Delinquency 4.89% Seller's Interest 9.33% Total Payment Rate 13.70% Total Principal Balance $ 58,171,313,434.78 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 5,425,622,873.29