Year 

Deadweight Tons

1789

204,426

1794

724,124

1796

951,609

1800

1,383,739

1810

2,137,174

1820

1,920,251

1830

1,787,663

1840

3,271,147

1850

5,303,180

1860

8,030,807

1870

6,369,761

1880

6,102,052

1890

6,636,746

1900

7,747,258

1910

11,262,123

1914

11,893,437

1917

13,306,556

1918

14,886,776

1919

19,440,047

1920

25,027,342

1921

27,990,817

1922

28,886,212