Nordstrom reported an 8.6 percent increase in same-store sales for the five-week period ended Dec. 29, compared with the five-week period ended Dec. 31, 2011. The Seattle-based fashion specialty retailer, which sells a lot of shoes, posted preliminary total retail sales of $1.72 billion for December 2012, up by 9.4 percent when compared with total retail sales for the same period in 2011. Quarter-to-date sales were up by 5.1 percent against the same period in 2011. Preliminary quarterly sales were reported at $2.65 billion, up by 6.6 percent from the previous year.