Exhibit 99.13 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-A KEY PERFORMANCE FACTORS June 30, 1997 Expected B Maturity 3/17/03 Blended Coupon 5.9239% Excess Protection Level 3 Month Average 4.34% June, 1997 4.84% May, 1997 4.43% April, 1997 3.75% Cash Yield 17.16% Investor Charge Offs 4.60% Base Rate 7.73% Over 35 Day Delinquency 4.57% Seller's Interest 10.08% Total Payment Rate 12.14% Total Principal Balance $27,184,721,330.37 Investor Participation Amount $700,000,000.00 Seller Participation Amount $2,741,483,811.88