For the five consecutive income tax years immediately following the year in which the executive director files written certification with the revisor of statutes as specified in section 39-22-1001 (8) that a line has become available and the public education fund voluntary contribution is next in the queue, the Colorado state individual income tax return form shall contain a line whereby each individual taxpayer may designate the amount of the contribution, if any, the individual wishes to make to the public education fund created in section 39-22-4203 (1).