Any payment or deposit of monies by the tenant, the primary function of which is to secure the performance of a rental agreement or any part of such agreement, including an advance payment of rent, shall be held by the landlord, in a fiduciary capacity for the benefit of the tenant and shall accrue simple interest at the rate equal to the average rates of interest paid on six-month certificates of deposit by banks doing business in the City of Berkeley until such time as the payment or deposit is returned to the tenant or entitled to be used by the landlord as provided in Civil Code Section 1950.5. The interest accrued by said payment or deposit through October 31st of each year shall be returned to the tenant annually in December of each year, either through a rent rebate or cash payment, and shall be at a rate equal to the 12-month average of the average rates of interest paid on six-month certificates of deposit by banks doing business in the City of Berkeley on the first business day of each month for the prior 12 months ending on November 1st, rounded to the nearest tenth. On or before November 15th of each year, the board shall give public notice of the rate to be effective for the following December. Upon the tenant’s departure from the premises, the balance of any interest accrued since the last October 31st shall be paid at the average monthly rate from the last November 1st to the date of departure and shall be returned to the tenant along with the appropriate part of the principal and any prior unpaid interest. The board shall compute and publicize the interest rate applicable under this section on an ongoing basis. (Ord. 7525-NS § 2, 2016: Ord. 6833-NS § 3 (part), 2004: Ord. 5467-NS § 7, 1982: Ord. 5261-NS § 7, 1980)