One copy of any paper or other matter to be filed, submitted or otherwise presented shall be sufficient. Additional copies if thereafter requested by the commissioner shall be furnished to him in a reasonable number in accordance with the needs of the matter but in any case where it is indicated to the commissioner that the furnishing of additional copies would be burdensome he may request, in lieu thereof, that a copy or copies be placed on deposit at a specified place or places, during stated hours and for a stated period, for the reasonable inspection thereof by persons having a proper interest therein.
N.J.S. § 17B:34-7