During the month of December in each year the commission shall certify to the board of chosen freeholders of the county the estimated sum necessary for the proper conduct of its work during the ensuing fiscal year which shall include the sums estimated to be expended for such of the following items as it is anticipated expenditure will be made for; namely,
The board of chosen freeholders of the county shall annually appropriate such sum as it may deem necessary for said purposes.
N.J.S. § 40:37-10.1