Exhibit 99.4 MBNA MASTER CREDIT CARD TRUST II SERIES 1995-E KEY PERFORMANCE FACTORS April 30, 2001 Expected B Maturity 09/16/2002 Blended Coupon 5.2810% Excess Protection Level 3 Month Average 7.67% April, 2001 7.54% March, 2001 8.05% February, 2001 7.42% Cash Yield 19.61% Investor Charge Offs 4.98% Base Rate 7.10% Over 30 Day Delinquency 4.89% Seller's Interest 9.33% Total Payment Rate 13.70% Total Principal Balance $58,171,313,434.78 Investor Participation Amount $500,000,000.00 Seller Participation Amount $5,425,622,873.29