Ukrainian Currency Collapses. The official rate of hryvnia (ukrainian currency) established the new anti-record. 10.04.2014 The Official rate of hryvnia established by National bank of Ukraine, fell to 12,61 hryvnias for dollar, is reported on NBU site. Thus, the new historical minimum on a ratio hryvnia/dollar was recorded. The main reasons for a collapse more than on a third of steel political crisis in Ukraine, and also prompt reduction of the international reserves of the state which fell with 20 to 15 billion dollars.