Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-L KEY PERFORMANCE FACTORS OCTOBER, 1997 Expected B Maturity 12/15/99 Blended Coupon 5.8198% Excess Protection Level 3 Month Average 4.97% October, 1997 5.44% September, 1997 4.83% August, 1997 4.64% Cash Yield 18.42% Investor Charge Offs 4.61% Base Rate 8.37% Over 35 Day Delinquency 4.76% Seller's Interest 13.78% Total Payment Rate 14.00% Total Principal Balance $ 31,941,631,051.83 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 4,401,496,533.34