At the end of October, the Russian ruble strengthened against the dollar by 4.65%, taking the second place in terms of growth among world currencies, RIA Novosti reports. The leader of the ranking was the Colombian peso, which rose in price against the American currency by 5%, and the Norwegian krone was in third place with an increase of 4.05%. The top five also included the Swedish kroner, which gained 1.73% and the Canadian dollar with an increase of 1.59%.