Exchange rate of the US greenback vis-a-vis the Kuwaiti dinar stood at KD 0.283 per dollar on Wednesday, while the euro rose to KD 0.381, said the daily exchange rate bulletin of the Central Bank of Kuwait. The bulletin said the pound sterling dropped to KD 0.450 as the Swiss franc rose to KD 0.309, whereas the Japanese yen stood at its long-held notch of KD 0.003.