Factbox - How Britain's retailers fared over Christmas

(Reuters) - British retailers are giving updates on Christmas trading, by far their busiest period stretching from "Black Friday" on Nov. 25 to clearance sales in early January. Following are highlights: Reported on Jan. 20: BONMARCHE British women’s clothing retailer Bonmarche said its sales for the 13 weeks to Dec. 24 increased by 3.3 percent. Jan. 19: N BROWN GROUP Plus-size fashion retailer N Brown Group posted a 4.1 percent rise in revenue for the 18 weeks to Dec. 31.