Quarterly Thousand Gross Tons
1918-04-01 2704.90
1918-07-01 3382.70
1918-10-01 3645.90
1919-01-01 4185.50
1919-04-01 3874.10
1919-07-01 3470.70
1919-10-01 2966.50
1920-01-01 2573.30
1920-04-01 2106.00
1920-07-01 1772.20
1920-10-01 1310.30
1921-01-01 1102.70
1921-04-01 717.600
1921-07-01 434.000
1921-10-01 216.400
1922-01-01 136.300
1922-04-01 150.600
1922-07-01 147.100
1922-10-01 139.400
1923-01-01 173.800
1923-04-01 133.700
1923-07-01 99.4000
1923-10-01 91.6000
1924-01-01 119.800
1924-04-01 103.700
1924-07-01 64.9000
1924-10-01 58.2000
1925-01-01 81.7000
1925-04-01 92.0000
1925-07-01 69.9000
1925-10-01 105.200
1926-01-01 117.800
1926-04-01 133.300
1926-07-01 119.700
1926-10-01 151.600
1927-01-01 179.300
1927-04-01 146.800
1927-07-01 91.1000
1927-10-01 97.4000
1928-01-01 56.0000
1928-04-01 55.5000
1928-07-01 64.6000
1928-10-01 47.9000
1929-01-01 96.4000
1929-04-01 119.100
1929-07-01 112.000
1929-10-01 179.100
1930-01-01 223.000
1930-04-01 238.200
1930-07-01 213.000
1930-10-01 232.000
1931-01-01 231.000
1931-04-01 301.500
1931-07-01 261.400
1931-10-01 207.800
1932-01-01 206.700
1932-04-01 162.200
1932-07-01 124.700
1932-10-01 59.6000
1933-01-01 31.1000
1933-04-01 3.00000
1933-07-01 14.7000
1933-10-01 12.4000
1934-01-01 27.3000
1934-04-01 27.6000
1934-07-01 22.2000
1934-10-01 20.1000
1935-01-01 18.5000
1935-04-01 25.9000
1935-07-01 16.8000
1935-10-01 33.4000
1936-01-01 49.8000
1936-04-01 90.3000
1936-07-01 91.0000
1936-10-01 110.400
1937-01-01 153.400
1937-04-01 198.700
1937-07-01 216.000
1937-10-01 204.100
1938-01-01 172.800
1938-04-01 166.900
1938-07-01 250.900
1938-10-01 298.600
1939-01-01 420.900
1939-04-01 391.800