Table 25. Commerce at Project Harbors On The Great Lakes, Calendar Year 1953 1-Continued [In tons of 2,000 pounds] River, Mich.. Holland Harbor, Mich. 289,919 289,786 Table 25. Commerce at Project Harbors On The Great Lakes, Calendar Year 1953 1-Continued [In tons of 2,000 pounds] Niagara Falls, N. Y. 1 Includes Canadian and Lakewise car ferry traffic as follows: Tonnage by type of traffic not reported for projects which handle less than 25,000 tons. The sampling error is between 20 and 49.9 percent. NOTE: Effective July 1, 1953 export tonnages of $100-499 valued shipments were estimated based on a 10% sample. Except for the items footnoted above, the error due to sampling did not exceed one percent. |