The following schedule of compensation is hereby established:
Any person receiving compensation under Section 306(a) or (c)(23) or 307 as a result of an injury which occurred prior to August 31, 1993, shall, beginning January 1, 2007, receive a minimum amount of one hundred dollars ($100) per week. The additional compensation shall be paid by the self-insured employer or insurance carrier making payment and shall be reimbursed in advance by the Commonwealth on a quarterly basis as provided in rules and regulations of the department. The payment of additional compensation shall be made by the carrier or self-insured employer only during those fiscal years for which appropriations are made to cover reimbursement.
77 P.S. § 583