Exhibit 99.19 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-J KEY PERFORMANCE FACTORS December 31, 1998 Expected B Maturity 10/15/03 Blended Coupon 5.7319% Excess Protection Level 3 Month Average 5.84% December, 1998 5.82% November, 1998 5.69% October, 1998 6.00% Cash Yield 18.72% Investor Charge Offs 4.98% Base Rate 7.92% Over 35 Day Delinquency 4.96% Seller's Interest 10.83% Total Payment Rate 13.62% Total Principal Balance $41,270,703,888.09 Investor Participation Amount $1,000,000,000.00 Seller Participation Amount $4,468,784,369.6