A UNODC report states: In terms of the citation index, eleven countries score very high as countries of origin. The countries are
(listed in alphabetical order, by sub-region): Belarus, the Republic of Moldova, the Russian Federation and Ukraine (Commonwealth of Independent States); Albania, Bulgaria, Lithuania and Romania (Central and South Eastern Europe); China (Eastern Asia); Thailand (South-Eastern Asia); and Nigeria (Western Africa).(pg 58).[1]