Exhibit 99.18 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-H KEY PERFORMANCE FACTORS FEBRUARY, 1999 Expected B Maturity 09/17/01 Blended Coupon 5.1379% Excess Protection Level 3 Month Average 5.84% February, 1999 6.06% January, 1999 5.46% December, 1998 6.02% Cash Yield 17.82% Investor Charge Offs 5.13% Base Rate 6.64% Over 35 Day Delinquency 5.38% Seller's Interest 9.80% Total Payment Rate 13.67% Total Principal Balance $ 40,800,539,305.60 Investor Participation Amount $ 1,200,000,000.00 Seller Participation Amount $ 3,998,619,787.11