Exhibit 99.18 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-H KEY PERFORMANCE FACTORS MAY, 1998 Expected B Maturity 09/17/01 Blended Coupon 5.8304% Excess Protection Level 3 Month Average 5.61% May, 1998 4.94% April, 1998 5.97% March, 1998 5.91% Cash Yield 17.95% Investor Charge Offs 5.01% Base Rate 7.99% Over 35 Day Delinquency 5.17% Seller's Interest 13.80% Total Payment Rate 13.68% Total Principal Balance $ 35,599,996,121.04 Investor Participation Amount $ 1,200,000,000.00 Seller Participation Amount $ 4,911,601,602.55