Exchange rate of the US greenback vis-a-vis the Kuwaiti dinar dropped to KD 0.282 per dollar on Wednesday, while the euro rose to KD 0.383, said the daily exchange rate bulletin of the Central Bank of Kuwait. The bulletin said the pound sterling also dropped to KD 0.455 as the Swiss franc stood at KD 0.310, whereas the Japanese yen stood at its long-held notch of KD 0.003.