Exhibit 99.4 MBNA MASTER CREDIT CARD TRUST II SERIES 1995-A KEY PERFORMANCE FACTORS May 31, 1999 Expected B Maturity 9/15/04 Blended Coupon 5.2206% Excess Protection Level 3 Month Average 6.38% May, 1999 7.52% April, 1999 5.01% March, 1999 6.63% Cash Yield 19.45% Investor Charge Offs 4.88% Base Rate 7.05% Over 30 Day Delinquency 4.89% Seller's Interest 6.97% Total Payment Rate 14.69% Total Principal Balance $41,914,776,221.36 Investor Participation Amount $575,000,000.00 Seller Participation Amount $2,922,256,702.87