Russia is a federation which consists of 83 subjects. blank">Конституция Российской Федерации, Статья 65 (_Constitution of Russia, Article 65) . In 1993, when the constitution was adopted, there were 89 subjects listed. Some of them were later merged. These subjects are of equal federal rights in the sense that they have equal representation—two delegates each—in the Federation Council (upper house of the Russian parliament). However, they do differ in the degree of autonomy they enjoy. Autonomous okrugs, while federal subjects in their own right, are at the same time considered to be administrative divisions of other federal subjects (with Chukotka Autonomous Okrug being the only exception).