The official rate of the US currency has not undergone any significant change for 20 successive days, ISNA reported on Sunday. Dollar’s official rate had experienced substantial growth, reaching from 27,993 rials at the beginning of the current Iranian year (started March 21) to 29,950 rials on August 31 when the upward trend slowed and the official rate was steady. However, over the past two weeks the greenback experienced high fluctuations in the free market as one dollar fetched 35000 rials.
