Section 10-107 - Statement to be furnished by vendor(a) Every vendor under a land installment contract shall mail or deliver a statement to the purchaser: (1) When 40 percent of the original cash price has been paid; and(2)(i) Annually within 30 days of January 1; or(ii) On demand of the purchaser no more than twice a year.(b) The statement shall show: (1) The total amount paid for any ground rent, insurance, taxes, and any other periodic charge;(2) The amount credited to principal and interest; and