TABLE N.-Statement of business of the customs districts and ports for the fiscal year ended June 30, 1917-Continued.

TABLE N.-Statement of business of the customs districts and ports for the fiscal year ended June 30, 1917—Continued.

TABLE N.-Statement of business of the customs districts and ports for the fiscal year ended June 30, 1917-Continued.

Average number of persons employed.

Cost

to
collect
$1.

Expenses.

Collecting

receipts.

revenue.

Enforcement of navigation laws.

Compilation of statistics.

Services of persons reimbursable.