Exhibit 99.34 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-D KEY PERFORMANCE FACTORS June 30, 1999 Expected B Maturity 7/15/2003 Blended Coupon 5.7953% Excess Protection Level 3 Month Average 6.08% June, 1999 5.28% May, 1999 7.71% April, 1999 5.26% Cash Yield17.44% Investor Charge Offs 5.06% Base Rate 7.09% Over 30 Day Delinquency 4.82% Seller's Interest11.01% Total Payment Rate13.71% Total Principal Balance$44,380,968,357.42 Investor Participation Amount$559,000,000.00 Seller Participation Amount$4,888,448,838.93