Inflation rate for Eurozone in December 2015 was 0.2%. In November 2015 it was 0.1%. Meanwhile ECBs target is annual 2% and it seems that ECB does everything it can to push the inflation to the target. For example:
The ECB in December decided to lower the deposit rate by 10 basis points to -0.30% and extended the asset purchase programme until March 2017 or "beyond if necessary". Yahoo! Finance
ECB probably wants to stimulate economic growth by causing inflation (?), but the question is what makes it fail? Greece is printing billions of euros, interest rates are lower than low, euro itself has devaluated dramatically. Why is that inflation still doesn't happen?