Under other criteria, some countries are at an intermediate stage of development, or, as the International Monetary Fund (IMF) put it, following the fall of the Soviet Union, "countries in transition": all those of Central and Eastern Europe (including Central European countries that still belonged to the "Eastern Europe Group" in the UN institutions); the former Soviet Union (USSR) countries in Central Asia (Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan and Turkmenistan); and Mongolia. By 2009, the IMF's World Economic Outlook classified countries as advanced, emerging, or developing, depending on "(1) per capita income level, (2) export diversification—so oil exporters that have high per capita GDP would not make the advanced classification because around 70% of its exports are oil, and (3) degree of integration into the global financial system".