Google launched a new feature in google account called Account Activity, which sends users a link to a password-protected monthly report of analytics about their signed in use of Google services.
emails sent,emails relevied,most contacted,total searches.
account sign-in locations,browsers,platforms.
connected sites,apps and servies.
How you spend your time per week,
Account activity also helps you take steps to protect your Google Account.
Just go to Account Activity and turn on.