WASHINGTON, DC – The ABI measured 48.5 in December 2013, down from 49.8 in in November. The AIA’s Architecture Billings Index (ABI) stood at 51.6 in October and 54.3 in September. A reading below 50 signifies a decline a monthly “Work-on-the-Boards” survey that is sent to a panel of AIA member-owned firms. 

 AIA Architecture Billings Index Infographic Dec. 2013

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