Industrial growth was significant, although unsteady, and in absolute terms it was not extensive. Russia's industrial regions included Moscow, the central regions of European Russia, St. Petersburg, the Baltic cities, Russian Poland, some areas along the lower Don and Dnepr rivers, and the southern Ural Mountains. By 1890 Russia had about 32,000 kilometers of railroads and 1.4 million factory workers, most of whom worked in the textile industry. Between 1860 and 1890, annual coal production had grown about 1,200 percent to over 6.8 million tons, and iron and steel production had more than doubled to 2 million tons per year. The state budget had more than doubled, however, and debt expenditures had quadrupled, constituting 28 percent of official expenditures in 1891.