The official rate, which is when the bank tell you it’s a fixed rate – not floating.  In the streets what you have is a black market where people will pay you more dinar than you would normally get from the bank in order to get the US dollars…it has nothing to do with it floating …there’s the official one [rate] and a parallel [black market] one [rate]…all you have to do is pay attention to what the Central Bank is telling you.