MOSCOW, July 17. /TASS/. The Bank of Russia set the official dollar rate at 78.1856 rubles for July 18, up 23 kopecks against the previous indicator.

The official euro rate was increased by 41 kopecks to 90.9716 rubles. The official yuan rate is fixed at 10.8787 rubles, up four kopecks.

The Central Bank said last June that it would fix official dollar and euro rates against the ruble on the basis of reports of banks on results of transactions in the over-the-counter currency market.