Exhibit 99.4 MBNA MASTER CREDIT CARD TRUST II SERIES 1995-A KEY PERFORMANCE FACTORS December 31, 1998 Expected B Maturity 9/15/04 Blended Coupon 5.8536% Excess Protection Level 3 Month Average 5.71% December, 1998 5.69% November, 1998 5.60% October, 1998 5.84% Cash Yield 18.72% Investor Charge Offs 4.98% Base Rate 8.05% Over 35 Day Delinquency 4.96% Seller's Interest 10.83% Total Payment Rate 13.62% Total Principal Balance $41,270,703,888.09 Investor Participation Amount $575,000,000.00 Seller Participation Amount $4,468,784,369.60