Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-A KEY PERFORMANCE FACTORS May 31, 1997 Expected B Maturity 9/15/99 Blended Coupon 5.8979% Excess Protection Level 3 Month Average 4.69% May, 1997 4.46% April, 1997 3.78% March, 1997 5.81% Cash Yield 17.28% Investor Charge Offs 4.53% Base Rate 8.29% Over 35 Day Delinquency 4.38% Seller's Interest 15.43% Total Payment Rate 12.75% Total Principal Balance $ 27,132,480,390.99 Investor Participation Amount $ 760,000,000.00 Seller Participation Amount $ 4,186,442,872.50