Exhibit 99.16 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-B KEY PERFORMANCE FACTORS January 31, 2001 Expected B Maturity 3/15/12 Blended Coupon 6.1160% Excess Protection Level 3 Month Average 4.53% January, 2001 6.90% December, 2000 0.24% November, 2000 6.43% Cash Yield 19.75% Investor Charge Offs 4.73% Base Rate 8.12% Over 30 Day Delinquency 4.88% Seller's Interest 11.58% Total Payment Rate 14.47% Total Principal Balance $57,905,967,832.59 Investor Participation Amount $1,000,000,000.00 Seller Participation Amount $6,705,277,271.10