Exhibit 99.41 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-G KEY PERFORMANCE FACTORS May 31, 2000 Expected B Maturity 07/15/2004 Blended Coupon 6.4417% Excess Protection Level 3 Month Average 5.64% May, 2000 5.67% April, 2000 5.39% March, 2000 5.85% Cash Yield19.29% Investor Charge Offs 4.66% Base Rate 8.96% Over 30 Day Delinquency 4.70% Seller's Interest 9.50% Total Payment Rate14.38% Total Principal Balance$52,496,626,963.52 Investor Participation Amount$750,000,000.00 Seller Participation Amount$4,987,826,445.03