This is more than the subscription revenue itself, right? This has to be a total sum including all digital sales, i.e. games, music, movies, etc. across all devices that access PSN.
Still quite impressive, but I suspect that as Nintendo builds a better platform with Switch (inevitable) then their digital sales on the one console (Switch) will outdo the multiple consoles that this generic PSN revenue (PS3, PSV, PSTV, PS4) is counting.