Exhibit 99.29 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-K KEY PERFORMANCE FACTORS May 31, 1998 Expected B Maturity 11/15/2005 Blended Coupon 5.8336% Excess Protection Level 3 Month Average 5.53% May, 1998 4.93% April, 1998 5.87% March, 1998 5.79% Cash Yield 17.95% Investor Charge Offs 5.01% Base Rate 8.00% 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 $750,000,000.00 Seller Participation Amount $4,911,601,602.55