Exhibit 99.37 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-E KEY PERFORMANCE FACTORS October 31, 2000 Expected B Maturity 6/17/02 Blended Coupon 6.8027% Excess Protection Level 3 Month Average 5.87% October, 2000 6.31% September, 2000 5.73% August, 2000 5.57% Cash Yield19.62% Investor Charge Offs 4.51% Base Rate 8.80% Over 30 Day Delinquency 5.23% Seller's Interest10.66% Total Payment Rate14.07% Total Principal Balance$56,359,968,018.99 Investor Participation Amount$1,000,000,000.00 Seller Participation Amount$6,009,277,457.50