Amounts awarded by the Board as weekly compensation for unreimbursable or unreimbursed losses in earnings or support shall not exceed the maximum prevailing weekly benefit in this State at the time of injury for those incidents, which occurred between the effective date of the Criminal Injuries Compensation Act of 1971 and December 31, 1982. For injuries arising from incidents, which occur upon or after January 1, 1983, the weekly rate shall be fixed by the Board pursuant to N.J.S.A. 52:4B-9.