Nov 16 (Reuters) - Slovak consumer prices were flat month-on-month in October, according to EU-norm data, slashing the annual inflation rate to 3.1 percent, data from the Statistics Office showed on Thursday. SLOVAK EU-NORM INFLATION Oct/06 Sept/06 Oct/05 pct change mo/mo 0.0 -0.2 +1.3 pct change yr/yr +3.1 +4.5 +3.5 NOTE. Analysts surveyed by Reuters had expected EU-norm inflation to have risen by 0.1 percent on the month, and 3.3 percent year-on-year in October. (Reporting by Martin Santa in Bratislava) ((For past economic data and analysts' forecasts, double click on <SK/ECON01>)) ((Editing by Cheryl Juckes; bratislava.newsroom@reuters.com; Reuters Messaging: martin.santa.reuters.com@reuters.net; +421 2 5341 8402)) Keywords: ECONOMY SLOVAKIA INFLATION TABLE