Exhibit 4: Output from Deutsche Bank's Zero-Coupon Yield Model Maturity (years) Model Prediction Bootstrap results Yield Difference (BEY) (in basis points) 1y 1.2443% 2y 1.8727% 3y 2.4110% 4y 2.9665% 5y 3.4454% 6y 3.8557% 7y 4.1996% By 4.4677% 9y 4.6528% 10y 4.7107% 15y 5.7160% 20y 5.9517% 25y 5.9315%