can "von drei zu drei Tagen" mean "every three days"?

[edmont]

Does "von drei zu drei Tagen" below mean expressions like, "at three day intervals," "every three days" ?
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Man darf sagen, wir haben von drei zu drei Tagen Tausende von Leuten gewonnen.
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Thank you for any assistance.

[tiorthan]

I don't know this, but I've found some other examples of similar phrasing that I'm trying to make sense of right now.

[tiorthan]

So after looking at several examples I have come to the conclusion that it can mean either "in three day intervals" or "in the course of three days". The latter seems more likely in this case.

[edmont]

Thank you, tiorthan!