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Quarterly Index

Quarterly Index

Published quarterly since 1968, COLI is available for purchase in print and various electronic formats. The print edition is a magazine-style publication that is mailed to the shipping address provided. PDF or Excel formats are available for immediate download.


The publication currently available is the 2020 Annual Average Index. If you are a print subscriber, please allow up to two full weeks after the publication date for your issue to arrive.


To map COLI cities to current Census metro delineations from February 2018, download the lookup file here.