BEIJING, Sept. 9 (Xinhua) -- China's yuan rose against the U.S. dollar for a fourth straight trading day Wednesday.

    The yuan's exchange rate stood at 6.8292 a U.S. dollar Wednesday, against 6.83 yuan the previous trading day.

    The currency is allowed to float on the interbank market within a 0.5-percent band daily set by the People's Bank of China, the central bank.

    The yuan so far has strengthened 17 basis points against the dollar over the past four trading days.

    The dollar index, a gauge of the greenback's strength against a basket of key currencies, fell to 77.047 early Tuesday morning, its lowest point in a year.

    On the market Wednesday, the yuan's exchange rate was 990.3 per 100 euros and it was also trading at 7.3913 for 100 yen.

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