Exhibit 99.16 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-E KEY PERFORMANCE FACTORS June 30, 2001 Expected B Maturity 4/15/02 Blended Coupon 4.8265% Excess Protection Level 3 Month Average 7.16% June, 2001 6.37% May, 2001 7.23% April, 2001 7.87% Cash Yield 19.01% Investor Charge Offs 5.67% Base Rate 6.97% Over 30 Day Delinquency 4.78% Seller's Interest 8.00% Total Payment Rate 14.15% Total Principal Balance $57,876,901,808.74 Investor Participation Amount $750,000,000.00 Seller Participation Amount $4,631,211,247.25