Exhibit 99.20 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-J KEY PERFORMANCE FACTORS August 31, 1997 Expected B Maturity 10/15/03 Blended Coupon 5.8475% Excess Protection Level 3 Month Average 4.67% August, 1997 4.61% July, 1997 4.54% June, 1997 4.85% Cash Yield 17.46% Investor Charge Offs 4.84% Base Rate 8.01% Over 35 Day Delinquency 4.66% Seller's Interest 14.91% Total Payment Rate 12.37% Total Principal Balance $30,603,901,306.35 Investor Participation Amount $1,000,000,000.00 Seller Participation Amount $4,563,766,787.86