It is getting harder to use free FED data with this kind of news:
State Street Inflation Data To Be Removed from FRED
FRED will no longer include data from State Street: On November 10, 2016, their PriceStats Inflation Series will be deleted from the FRED database, Excel Add-in, mobile apps, APIs, and all other FRED services.
Custom links to these series or custom graphs that contain these series may be broken or may return unexpected results. We apologize for this inconvenience and hope you continue to find value in our free data services.