BERLIN, Mar 2 (Reuters) - Germany's Federal Statistics office reported the following retail sales data on Friday: RETAIL SALES JAN 2018 DEC 2017 JAN 2017 M/M pct change (real) -0.7 -1.1 -0.7 M/M pct change (nominal) -0.6 -0.9 -0.4 Y/Y pct change (real) 2.3 -0.2 3.6 Y/Y pct change (nominal) 3.7 1.5 5.9 NOTE - Month-on-month changes were adjusted for calendar and seasonal factors, the Office said. The mid-range forecast of analysts polled by Reuters was for retail sales to rise by 0.9 percent month-on-month and to increase by 3.5 percent year-on-year . (Reporting by Berlin Newsroom)