Exhibit 99.12 MBNA MASTER CREDIT CARD TRUST II SERIES 1995-J KEY PERFORMANCE FACTORS July 31, 1997 Expected B Maturity 12/16/02 Blended Coupon 5.9465% Excess Protection Level 3 Month Average 4.56% July, 1997 4.47% June, 1997 4.82% May, 1997 4.40% Cash Yield 17.53% Investor Charge Offs 4.92% Base Rate 8.14% Over 35 Day Delinquency 4.47% Seller's Interest 18.18% Total Payment Rate 14.22% Total Principal Balance $30,179,392,749.44 Investor Participation Amount $500,000,000.00 Seller Participation Amount $5,486,155,230.95