BERLIN, June 13 (Reuters) - Germany's Federal Statistics Office reported the following economic indicator on Tuesday (changes are in percent): GERMAN WHOLESALE PRICES MAY 17 APRIL 17 MAY 16 Month-on-month change -0.7 +0.3 +0.9 Year-on-year change +3.1 +4.7 -2.3 Index (basis 2010) 106.9 107.6 103.7 (Reporting by Berlin bureau)