Here is Agent Lau's record of Inbound and Outbound traffic, separated by Loads and Empties, for a September in the mid 1960s:
Inbound Outbound Loads Mtys Loads Mtys Sept. 3 5 0 2 1 Sept. 5 2 2 2 2 Sept. 7 2 4 3 3 Sept. 10 4 3 4 3 Sept. 12 1 3 5 0 Sept. 14 4 4 5 0 Sept. 17 6 4 7 2 Sept. 19 5 0 5 5 Sept. 21 2 2 2 3 Sept. 24 4 4 2 3 Sept. 26 2 1 2 1 Sept. 28 2 1 4 2 Totals 39 28 38 26