Exhibit 99.22 MBNA MASTER CREDIT CARD TRUST II SERIES 1996-L KEY PERFORMANCE FACTORS MARCH, 1997 Expected B Maturity 12/15/99 Blended Coupon 5.5777% Excess Protection Level 3 Month Average 4.91% March, 1997 5.93% February, 1997 5.44% January, 1997 3.35% Cash Yield 17.86% Investor Charge Offs 4.50% Base Rate 7.42% Over 35 Day Delinquency 4.55% Seller's Interest 12.97% Total Payment Rate 12.55% Total Principal Balance $ 24,979,151,243.99 Investor Participation Amount $ 500,000,000.00 Seller Participation Amount $ 3,239,523,725.50