Yugoslav and Serbian expenditures during the war were even more disproportionate. The federal budget proposal for 1992 earmarked 81 percent of funds to be diverted into the Serbian war effort. Since a substantial part of the federal budgets prior to 1992 was provided by Slovenia and Croatia, the most developed republics of Yugoslavia, a lack of federal income quickly led to desperate printing of money to finance government operations. That in turn produced the worst episode of hyperinflation in history: Between October 1993 and January 1995, Yugoslavia, which then consisted of Serbia and Montenegro, suffered through a hyperinflation of five percent.