Russian rouble slightly strengthens against the US dollar

The Russian rouble strengthened slightly against the U.S. dollar on Friday, Reuters reported. By 07.22 GMT (11:22 UAE time), the rouble was 0.23 percent higher at 92.28 to the dollar after trading in a range of 92.135 to 92.690.Against the euro, the rouble rose 0.52 percent to 99.47 and gained 0.59