Exhibit 99.34 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-D KEY PERFORMANCE FACTORS July 31, 1999 Expected B Maturity 7/15/2003 Blended Coupon 5.8098% Excess Protection Level 3 Month Average 6.38% July, 1999 6.14% June, 1999 5.28% May, 1999 7.71% Cash Yield18.70% Investor Charge Offs 4.97% Base Rate 7.59% Over 30 Day Delinquency 4.84% Seller's Interest 9.75% Total Payment Rate14.54% Total Principal Balance$45,698,903,036.29 Investor Participation Amount$559,000,000.00 Seller Participation Amount$4,456,383,517.80