Exhibit 99.12 MBNA MASTER CREDIT CARD TRUST II SERIES 1995-J KEY PERFORMANCE FACTORS June 30, 1997 Expected B Maturity 12/16/02 Blended Coupon 5.9523% Excess Protection Level 3 Month Average 4.31% June, 1997 4.82% May, 1997 4.40% April, 1997 3.73% Cash Yield 17.16% Investor Charge Offs 4.60% Base Rate 7.75% 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 $500,000,000.00 Seller Participation Amount $2,741,483,811.88