Currency exchange rates can fluctuate very considerably, altering local prices. Daytime temperatures normally fluctuate between and depending on season. People have different metabolic rates that can fluctuate due to activity level and environmental conditions. Likewise, flow can fluctuate seasonally in some areas. Troop numbers would also fluctuate as American presence gradually declines. It remains a collectors market, and, accordingly, prices fluctuate greatly. This typically results in complexes that rapidly fluctuate between all possible configurations. In addition, temperatures usually fluctuate greatly in springtime. Employment in worker-owned firms tends to be more stable than conventional firms, which fluctuate more. Desert temperatures will fluctuate dramatically from day to night. Temperatures do not fluctuate widely throughout the year. Annual snowfall averages , but this figure can fluctuate greatly from one year to another. However, literacy rates fluctuate across Ghana country and socioeconomic statuses. Spring is characterized by changeable weather with temperatures that can fluctuate. Stocks can also fluctuate greatly due to pump and dump scams.