Each participant in a plan shall be furnished with a statement at least quarterly from the trustee or administrative service agency. Such statement shall indicate the balance of his or her account under the plan, the participant’s interest in each investment option under the plan and any other data which the board or deferred compensation committee [or financial organization] as applicable, shall determine to be relevant. Each participant in a plan shall be furnished with clear and complete written disclosure no less frequently than annually (a) of all fees and expenses paid out of or charged against any assets of the plan, including all fees and expenses netted against any investment return on amounts held under the plan and (b) of the allocation of all such fees and expenses to and among participants’ accounts under the plan.