For each week beginning on a given date, the figures show the number of sites that reported they are using the google_cse 5.x-1.2 release.

Google Programmable Search Engine project page
google_cse 5.x-1.2 release page
All Google Programmable Search Engine usage statistics
Usage statistics for all projects

There is no usage information available.

Only Drupal websites using the Update Status module are included in the data. Read more information about how these statistics are calculated.