An analyst gathers the following details about a bond portfolio:

• Bond 1: Market Price = 95 (per 100 of par value), Money Duration = 730 (per 100 of par value)
• Bond 2: Market Price = 120 (per 100 of par value), Money Duration = 515 (per 100 of par value) If each bond has a par value of €25 million, the modified duration of this bond portfolio is closest to: