Exhibit 99.13 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-D KEY PERFORMANCE FACTORS May 31, 2000 Expected B Maturity 05/15/01 Blended Coupon 6.7055% Excess Protection Level 3 Month Average 5.70% May, 2000 5.70% April, 2000 5.49% March, 2000 5.89% Cash Yield 19.29% Investor Charge Offs 4.66% Base Rate 8.93% Over 30 Day Delinquency 4.70% Seller's Interest 9.50% Total Payment Rate 14.38% Total Principal Balance $52,496,626,963.52 Investor Participation Amount $1,000,000,000.00 Seller Participation Amount $4,987,826,445.03