the core inflation rate turned negative to - 0.1% on an annual basis from 0.2% in March.
From Reuters yesterday
Domestically generated inflation in the euro zone is subdued(...) the European Union's executive said that the main reason for the acceleration of headline inflation -- to an annual rate of 2.6 percent in March -- was higher commodity and fuel prices.From Clearmoney, a graph of core vs. headline inflation until Feb 2011
Unit Labor costs have been subdued for the last 2 years(see the red line). Data goes to 2010Q4