Exhibit 99.36 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-B KEY PERFORMANCE FACTORS August 31, 2000 Expected B Maturity 3/16/09 Blended Coupon 5.9788% Excess Protection Level 3 Month Average 5.65% August, 2000 5.72% July, 2000 6.15% June, 2000 5.09% Cash Yield19.12% Investor Charge Offs 4.51% Base Rate 8.88% Over 30 Day Delinquency 4.84% Seller's Interest10.94% Total Payment Rate14.32% Total Principal Balance$55,220,806,818.68 Investor Participation Amount$750,000,000.00 Seller Participation Amount$6,039,606,300.19