In undertaking rehabilitation of structures pursuant to this part, every redevelopment agency shall, on or before February 15th of each year, commencing with February 15, 1963, render a report to the Legislature setting forth in detail the activities of the agency involving rehabilitation, including, but not limited to, each of the following:
(a) Expenditure of public funds.
(b) Number and kinds of units rehabilitated.
(c) Disposition of rehabilitated units.