Who has two thumbs and isn't stumped?

 ... this guy.

From the WSJ (via Tim Duy (via Mark Thoma)) we get a nice compilation of central bank forecasts from 2011 to 2015 along with actual inflation. Although the information equilibrium model didn't exist in 2011, I thought I'd run the projections using the data that would have been available at the time (although it does include revisions, but these shouldn't perturb the results too much since they're relatively stable) and overlay the results on the nice WSJ graph:

For reference, the various forecasts are here.