Exhibit 99.19 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-F KEY PERFORMANCE FACTORS February 28, 2001 Expected B Maturity 6/17/02 Blended Coupon 6.5071% Excess Protection Level 3 Month Average 4.99% February, 2001 7.56% January, 2001 6.98% December, 2000 0.43% Cash Yield 19.48% Investor Charge Offs 4.62% Base Rate 7.30% Over 30 Day Delinquency 5.13% Seller's Interest 8.26% Total Payment Rate 13.44% Total Principal Balance $57,174,868,500.05 Investor Participation Amount $706,000,000.00 Seller Participation Amount $4,724,177,938.56