| 7.
  Coprolite Output and Phosphate Imports 1874 - 1914 | ||
|  |  |  | 
|  | Coprolite output | Phosphate imports | 
| 1874 | 149654 | n/a | 
| 1875 | 250122 | 5008 | 
| 1876 | 258150 | n/a | 
| 1877 | 69006 | 170000 | 
| 1878 | 54000 | 170000 | 
| 1879 | 34000 | n/a | 
| 1880 | 30500 | n/a | 
| 1881 | 31500 | n/a | 
| 1882 | 49550 | 199428 | 
| 1883 | 49580 | 246945 | 
| 1884 | 51866 | 219225 | 
| 1885 | 30000 | 238572 | 
| 1886 | 20000 | 223111 | 
| 1887 | 9894 | 283415 | 
| 1888 | 22500 | 257886 | 
| 1889 | 20000 | 304953 | 
| 1890 | 18000 | 343501 | 
| 1891 | 10000 | 256772 | 
| 1892 | 12200 | 314130 | 
| 1893 | 3300 | 323527 | 
| 1894 | 700 | 380269 | 
| 1895 | 2500 | 359659 | 
| 1896 | 3000 | 291314 | 
| 1897 | 2000 | 324788 | 
| 1898 | 1550 | 330610 | 
| 1899 | 1446 | 420108 | 
| 1900 | 620 | 355502 | 
| 1901 | 79 | 354890 | 
| 1902 | 86 | 364859 | 
| 1903 | 70 | 392782 | 
| 1904 | 58 | 419270 | 
| 1905 | 0 | 420998 | 
| 1906 | 0 | 442970 | 
| 1907 | 32 | 505671 | 
| 1908 | 9 | 529135 | 
| 1909 | 4 | 451807 | 
| 1910 | 0 | 455593 | 
| 1911 | 0 | 493415 | 
| 1912 | 0 | 520267 | 
| 1913 | 0 | 539016 | 
| 1914 | 0 | 539016 |