Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-L KEY PERFORMANCE FACTORS JULY, 1997 Expected B Maturity 12/15/99 Blended Coupon 5.8823% Excess Protection Level 3 Month Average 4.66% July, 1997 4.58% June, 1997 4.88% May, 1997 4.51% Cash Yield 17.58% Investor Charge Offs 4.92% Base Rate 8.08% Over 35 Day Delinquency 4.47% Seller's Interest 18.18% Total Payment Rate 14.22% Total Principal Balance $ 30,179,392,749.44 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 5,486,155,230.95