Frame number in CSV export from analysis

[JakubPelka]

Is it possible to have a frame number in CSV as a part of detection? Or second of the film?
I'd like to create statistics about usage of a street by different car types - what kind of vehicle, and what time it goes (so I know when there is the biggest traffic, and how many cars goes on avarage in an hour).
How can I add it ?
(all statistics I can generate later if I have data in CSV)
Will be glad for help