Exhibit 99.4 MBNA MASTER CREDIT CARD TRUST II SERIES 1995-A KEY PERFORMANCE FACTORS March 31, 1999 Expected B Maturity 9/15/04 Blended Coupon 5.2569% Excess Protection Level 3 Month Average 6.06% March, 1999 6.63% February, 1999 5.97% January, 1999 5.59% Cash Yield 19.18% Investor Charge Offs 5.12% Base Rate 7.43% Over 35 Day Delinquency 4.94% Seller's Interest 6.34% Total Payment Rate 14.77% Total Principal Balance $40,628,355,078.94 Investor Participation Amount $575,000,000.00 Seller Participation Amount $2,576,435,560.45