Exhibit 99.24 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-I KEY PERFORMANCE FACTORS January 31, 2000 Expected B Maturity 8/16/04 Blended Coupon 6.5067% Excess Protection Level 3 Month Average 5.33% January, 2000 5.43% December, 1999 4.67% November, 1999 5.87% Cash Yield17.74% Investor Charge Offs 4.73% Base Rate 7.58% Over 30 Day Delinquency 5.03% Seller's Interest 9.78% Total Payment Rate14.21% Total Principal Balance$49,077,414,912.07 Investor Participation Amount$750,000,000.00 Seller Participation Amount$4,800,914,393.58