**To search the device index for aggregate data** The following ``get-statistics`` example returns the number of things that have a property called ``connectivity.connected`` set to ``false`` (that is, the number of devices that are not connected) in their device shadow. :: aws iot get-statistics \ --index-name AWS_Things \ --query-string "connectivity.connected:false" Output:: { "statistics": { "count": 6 } } For more information, see `Getting Statistics About Your Device Fleet <https://docs.aws.amazon.com/iot/latest/developerguide/index-aggregate.html>`__ in the *AWS IoT Developer Guide*.