Exhibit 99.32 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-N KEY PERFORMANCE FACTORS April 30, 1998 Expected B Maturity 11/15/00 Blended Coupon 5.7393% Excess Protection Level 3 Month Average 5.56% April, 1998 6.00% March, 1998 5.94% February, 1998 4.73% Cash Yield 18.70% Investor Charge Offs 4.96% Base Rate 7.74% Over 35 Day Delinquency 5.03% Seller's Interest 14.63% Total Payment Rate 14.61% Total Principal Balance $35,947,972,379.88 Investor Participation Amount $900,000,000.00 Seller Participation Amount $5,259,577,861.39