Exhibit 99.29 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-N KEY PERFORMANCE FACTORS October 31, 1999 Expected B Maturity 11/15/00 Blended Coupon 5.5610% Excess Protection Level 3 Month Average 5.99% October, 1999 6.25% September, 1999 5.87% August, 1999 5.85% Cash Yield 18.66% Investor Charge Offs 4.68% Base Rate 7.72% Over 30 Day Delinquency 5.07% Seller's Interest 9.14% Total Payment Rate 14.64% Total Principal Balance $47,636,626,081.62 Investor Participation Amount $900,000,000.00 Seller Participation Amount $4,354,806,563.13