1. At the official rate of exchange , the increase was to dlrs 11.6 billion from dlrs 10.3 billion. 2. The total construction cost was nearly 1, 500 million Kyats ( dlrs 250 million at the official rate of exchange ). 3. At the official rate of exchange , the increase was to dlrs 11 . 6 billion from dlrs 10 . 3 billion. 4. The sum is equal to dlrs 789 million at the official rate of exchange , or dlrs 41 million on the black market. 5. The payment is worth dlrs 8, 770 at the official rate of exchange , or about dlrs 455 at the black market rate. 6. Five hundred kyat is worth about dlrs 83 at the official rate of exchange , but less than dlrs 5 on the black market. 7. This was meant to be a temporary measure, with the gold price of the dollar and the official rate of exchanges remaining constant. 8. The coupon would get him gas for 7.2 dinars a liter, or about $ 2.80 a gallon at the official rate of exchange . 9. On Wednesday, Burundi state radio said the new official rate of exchange had been set at between 1, 071-1, 074 francs to the dollar. 10. Soon after parliament voted on the new law, the official rate of exchange weakened to 1, 590 pounds to the dollar from 1, 540.