Exchange rate of the US dollar was down to 0.280 Kuwaiti Dinar (KD), and the Euro rose to KD 0.371, compared to Wednesday\'s figures, said the Central Bank of Kuwait (CBK) on Thursday. The exchange rate of Sterling pound rose to KD 0.456, while Japanese yen remained unchanged at KD 0.003 and the Swiss franc rose to KD 0.307.