Exhibit 99.42 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-G KEY PERFORMANCE FACTORS November 30, 1999 Expected B Maturity 07/15/2004 Blended Coupon 6.3575% Excess Protection Level 3 Month Average 5.83% November, 1999 5.73% October, 1999 6.04% September, 1999 5.71% Cash Yield18.33% Investor Charge Offs 4.89% Base Rate 7.71% Over 30 Day Delinquency 5.02% Seller's Interest 8.52% Total Payment Rate14.09% Total Principal Balance$48,461,894,441.68 Investor Participation Amount$750,000,000.00 Seller Participation Amount$4,130,074,923.19