 However, they had been hardly enough to compensate the export of domestic talents which had started in larger scale during the war and sanctions period.Unfortunately, since the stabilization of the political situation, the export of quality players has not diminished as the war period had turned it into a particularly attractive and profitable business for managers and others involved, who simply kept, and even further developed, this lucrative activity.This lists include the number of national titles, excluding the Serbian championships played prior to 1923 (which were not national), and the ones played during WWII (which were not FIFA recognised).