To access the suite of journal usage statistics available via OJS 3.0.2, login to your journal site and navigate to: Tools -> Statistics.
From here, you can access the following statistics reports tracking the details associated with site usage and submissions over a given period of time. Reports are generated in CSV format which requires a spreadsheet application to view.
You can also use the 'Generate Custom Report' feature to build your own reports. For example, aggregate statistics on journal article usage by country, city, month or day.