§ 810. Statement to be forwarded to commissioner. On or before the first day of February in each year, the clerk of the board of supervisors, shall transmit to the commissioner, in the form prescribed by it, a statement for the preceding calendar year showing the aggregate assessed and full valuation of the taxable real property in, and the county equalization rate for, each city and town in the county as determined by the county equalization agency. The time for transmitting such statement may be extended by the commissioner for good cause shown by the clerk of the board of supervisors.