Meaning of one figure in Tor Network Status web page

[Pascal Levasseur]

> > I would like to know what is the meaning of the fourth figure (in this
> > example, the one after 5 and 4) in the data displayed by the Tor Network
> > Status at serifos.eecs.harvard.edu ?
> > 
> > FR *clearstream           20    5    4    1
> 
> It's the reported uptime.
> 
> Fabian

Thanks.

Is it in weeks or days ?

Pascal