The department of Meurthe-et-Moselle (basins of Nancy and Longwy-Briey) furnished 84% of the total output during the quinquennial period 1901-1905, may be reckoned as one of the principal iron-producing regions of the world.
From 1861 the census has been taken decennially by all the states except Queensland, where, as in New Zealand, it has been quinquennial since 1875 and 1881 respectively.
The table below gives the average production of zinc, argentiferous lead, iron-pyrites and other ores during the quinquennial period 1901f 905.
The above table shows the developments of French trade during the years from 1876 to 1905 by means of quinquennial averages.
The average value of the principal articles of import and export (special trade) over quinquennial periods following 1890 is shown in the two tables below.