Exhibit 99.15 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-J KEY PERFORMANCE FACTORS July 31, 2000 Expected B Maturity 10/15/03 Blended Coupon 6.8222% Excess Protection Level 3 Month Average 5.53% July, 2000 6.02% June, 2000 4.92% May, 2000 5.65% Cash Yield 19.22% Investor Charge Offs 4.57% Base Rate 8.63% Over 30 Day Delinquency 4.81% Seller's Interest 11.87% Total Payment Rate 14.13% Total Principal Balance $55,010,319,976.67 Investor Participation Amount $1,000,000,000.00 Seller Participation Amount $6,529,119,458.1