The Administrator shall prepare and submit to the President and the Congress on or before January 1, 1978, and on or before January 1 of each succeeding year a comprehensive report on the administration of this chapter during the preceding fiscal year. Such reports shall include—

(1) a list of the testing required under section 2603 of this title during the year for which the report is made and an estimate of the costs incurred during such year by the persons required to perform such tests;

(2) the number of notices received during such year under section 2604 of this title, the number of such notices received during such year under such section for chemical substances subject to a section 2603 rule, order, or consent agreement, and a summary of any action taken during such year under section 2604(g) of this title;

(3) a list of rules issued during such year under section 2605 of this title;

(4) a list, with a brief statement of the issues, of completed or pending judicial actions under this chapter and administrative actions under section 2615 of this title during such year;

(5) a summary of major problems encountered in the administration of this chapter; and

(6) such recommendations for additional legislation as the Administrator deems necessary to carry out the purposes of this chapter.