Exhibit 99.19 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-M KEY PERFORMANCE FACTORS APRIL, 2000 Expected B Maturity 12/15/06 Blended Coupon 6.2907% Excess Protection Level 3 Month Average 5.80% April, 2000 5.56% March, 2000 5.85% February, 2000 5.99% Cash Yield 18.13% Investor Charge Offs 4.70% Base Rate 7.87% Over 30 Day Delinquency 4.72% Seller's Interest 10.74% Total Payment Rate 13.82% Total Principal Balance $ 52,271,464,953.72 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 5,612,664,435.23