GNP of the Great Powers of Europe (in billions USD, 1960 prices) (1830 to 1890)

Many countries experienced significantly lower growth rates relative to what they had experienced earlier in the 19th century and to what they experienced afterwards:

Reference 1: Russia, France, United Kingdom, Germany, Austria-Hungary and Italy.

Reference 2: 1830, 1840, 1850, 1860, 1870, 1880 and 1890.

Source: http://en.wikipedia.org/wiki/Long_Depression