The annual report of the bureau shall include statistics showing the number of private firms and corporations engaged in the several industries in this state; the capital invested; amount of raw material used and its cost value; amount of goods manufactured and the selling price of said goods; the number of persons employed, by months, and distinguished as to sex; total wages paid; classification of wages, and such other information as may be necessary to show the true condition of each of said manufacturing industries.
N.J.S. § 34:1-50