Exhibit 99.20 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-I KEY PERFORMANCE FACTORS February 28, 2001 Expected B Maturity 8/16/04 Blended Coupon 6.4724% Excess Protection Level 3 Month Average 4.96% February, 2001 7.53% January, 2001 6.94% December, 2000 0.39% Cash Yield19.48% Investor Charge Offs 4.62% Base Rate 7.33% Over 30 Day Delinquency 5.13% Seller's Interest 8.26% Total Payment Rate13.44% Total Principal Balance$57,174,868,500.05 Investor Participation Amount$750,000,000.00 Seller Participation Amount$4,724,177,938.56