The nonfarm payrolls figure released by the US Department of Labor presents the number of new jobs created during the previous month, in all non-agricultural business, within the States. The figure is released at 8.30 am eastern standard time, 1.30pm GMT, on the first trading Friday of the month. The payrolls figure can change significantly month on month, due to its high correlation with economic policy decisions made by the US Central Bank. The published number is closely watched by traders, and changes in their opinions tends to trigger volatility in the markets. Generally speaking, a high reading is seen as positive for the US economy, while a low reading is seen as negative.