Answer: so-so.
Reader Erik Poole commenting on this figure (in this post) writes:
Assuming that the all the inflation forecasts are one-year forecasts in the above chart, do we have any kind of inflation expectations data for shorter time frames, such as 6 months?
The above is a fancy way of asking: are financial markets and professional forecastersb really that bad at forecasting inflation?
Glancing at the above chart, it appears to make a good argument for adaptive expectations driving economic agents inflation expectations.