Exhibit 99.34 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-D KEY PERFORMANCE FACTORS March 31, 2001 Expected B Maturity 6/15/2006 Blended Coupon 5.5594% Excess Protection Level 3 Month Average 7.37% March, 2001 7.97% February, 2001 7.28% January, 2001 6.85% Cash Yield20.67% Investor Charge Offs 4.83% Base Rate 7.86% Over 30 Day Delinquency 4.90% Seller's Interest 7.37% Total Payment Rate14.60% Total Principal Balance$56,622,749,044.91 Investor Participation Amount$500,000,000.00 Seller Participation Amount$4,172,058,483.42