Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-L KEY PERFORMANCE FACTORS AUGUST, 1997 Expected B Maturity 12/15/99 Blended Coupon 5.8212% Excess Protection Level 3 Month Average 4.70% August, 1997 4.64% July, 1997 4.58% June, 1997 4.88% Cash Yield 17.46% Investor Charge Offs 4.84% Base Rate 7.98% Over 35 Day Delinquency 4.66% Seller's Interest 14.91% Total Payment Rate 12.37% Total Principal Balance $ 30,603,901,306.35 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 4,563,766,787.86