2005 5,730 (January); 6,200 (March); 9,000 (May); 10,800 (18 July); 17,600 (25 July); 24,500 (25 August); 26,003 (September); 26,003 (October); 60,000 (Nov); 84,588 (30 December) 6,400 (January); 14,000 (March); 20,000 (May); 25,000 (18 July); 45,000 (25 July); 45,000 (25 August); 75,000 (September); 80,000 to 100,000 (October); 90,000 (Nov); 96,000 (30 December) 24 August: Zimbabwean dollar becomes least valued currency unit In November 2005, the regular currency auctions were discontinued and the RBZ announced that "market factors" would control the exchange rate.