Exhibit 99.19 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-L KEY PERFORMANCE FACTORS OCTOBER, 1999 Expected B Maturity 12/15/99 Blended Coupon 5.5291% Excess Protection Level 3 Month Average 6.02% October, 1999 6.29% September, 1999 5.90% August, 1999 5.88% Cash Yield 18.66% Investor Charge Offs 4.68% Base Rate 7.68% 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 $ 500,000,000.00 Seller Participation Amount $ 4,354,806,563.13