As to those fees charged to a developer/applicant, in the event that the amount exceeds $5,000 and is placed by the developer/applicant with the Township for professional services employed by the Township to review applications for development or for municipal inspection fees, the money, until repaid or applied to the purposes for which it is deposited, including the applicant's portion of the interest earned thereon, shall continue to be the property of the applicant and shall be held in trust by the municipality. Monies deposited shall be in escrow. The municipality receiving the money shall deposit it in a banking institution or saving and loan association in this state, insured by an agency of the federal government, or in any other fund or depository approved for such deposits by this state, in an account bearing interest at the minimum rate currently paid by the institution or depository on time or savings of deposits. The Township will notify the developer in writing of the name and address of the institution or depository in which the deposit was made in the amount of the deposit. The Township shall not be required to refund an amount of interest paid on the deposit which does not exceed $100 for the year. If the amount of interest exceeds $100, that entire amount shall belong to the developer and shall be refunded to him/her by the Township annually or at the time the deposit is repaid or applied to the purposes for which it was deposited, as the case may be. Provided, however, that the Township may retain for administrative expenses a sum equivalent to no more than 33 1/3% of that entire amount, which shall be in lieu of all other administrative and custodial expenses.