Exhibit 99.13 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-A KEY PERFORMANCE FACTORS May 31, 1997 Expected B Maturity 3/17/03 Blended Coupon 5.9248% Excess Protection Level 3 Month Average 4.68% May, 1997 4.43% April, 1997 3.75% March, 1997 5.85% Cash Yield 17.28% Investor Charge Offs 4.53% Base Rate 8.32% Over 35 Day Delinquency 4.38% Seller's Interest 15.43% Total Payment Rate 12.75% Total Principal Balance $27,132,480,390.99 Investor Participation Amount $700,000,000.00 Seller Participation Amount $4,186,442,872.50