Each county clerk, on or before the thirtieth day of June, annually, shall make out and transmit to the state board of education, at Jefferson City, a report of school districts in his county made by him according to the form prescribed by the state board of education; such report to include the amount of income of the school funds of the county, the amount realized from taxes collected therein, the amount of replacement tax under § 6(2) of Article X of the Constitution of Missouri and the assessed valuation of each district within the county by the categories specified in section 137.115.