Data from login-audit.csv file is not visible for Basic user.

That seems to be by design. The function only works for Superusers and members of Designers group.
Possible workaround is to have basic users started a new process which can then execute a script task in Administrator context to access the file.

Thanks Rawich. We are doing this in Reports and this last login has to be loaded on first screen of the report. Think we cannot use this process model approach. Any other way ?

One workaround is to have a nightly sync process that pulls the login information into your own db table, then query that table from the report.

What Josh suggested should work for your requirement.
With the sync process, you can actually set the frequency as often as you need. You can also add a button in the report UI itself, to refresh the data by starting a new sync. process to populate the DB table with latest data.

You'll have to create a logic to remember or figure out the previous time of the synchronization, so not to pull the same data again. Also, if you're in multiple app servers environment (for load balancing and/or high availability purpose), then you'll have to manage to pull the csv file from all servers.

I know these sound like a lot of hoops to jump through to get simple information. You might want to check out App Market, there are available solutions that include this feature. We're using AppInsights.