The Chicago Business Barometer was revised up 1.7 points to 60.8 in December2013 from the previously reported figure of 59.1, as a result of the annual seasonal adjustment recalculation.
The Barometer was revised lower during the first quarter of 2013, but was revised up in both the third and fourth quarters, pointing to an even stronger second half of the year than initially estimated.
The Barometer was revised higher in seven out of the past 12 months, including October when it rose to the highest since March 2011. Februrary saw the largest revision, with the Barometer revised down 1.8 points to 55.0 from 56.8 previously.
All series in the Chicago Report are seasonally adjusted and the seasonaladjustment factors are recalculated annually every January.