Any such contract shall provide that any such manager or producer of its business shall within 90 days after expiration of each calendar year furnish the insurer’s board of directors a written statement of amounts received under or on account of the contract and amounts expended thereunder during such calendar year, including the emoluments received therefrom by the respective directors, officers, and other principal management personnel of the manager or producer, and with such classification of items and further detail as the insurer’s board of directors may reasonably require.