The total imports and exports on the eve of the French invasion (in 1830) did not exceed £175,000. By 1850, the figures had reached £5,000,000; in 1868, £12,000,000; in 1880, £17,000,000; and in 1890, £20,000,000. From this point progress was slower and the figures varied considerably year by year. In 1905 the total value of the foreign trade was £24,500,000. About five-sixths of the trade is with or via France, into which country several Algerian goods have been admitted duty-free since 1851, and all since 1867. French goods, except sugar, have been admitted into Algeria without payment of duty since 1835. After the 1892 increase of the French minimum tariff which applied to Algeria for the first time, foreign trade greatly diminished.
