This is a world map of 24-hour relative average utilization of IPv4 addresses observed using ICMP ping requests as part of the Internet Census of 2012 (Carna Botnet), June – October 2012.
Key: from red (high), to yellow, green (average), light blue, and dark blue (low).
Notice how the activity declines during the night, but not by much. IoT never sleeps.
And the list of top 20 Internet countries looks like this: