Well Sony traditionally round their numbers up and since it's so inaccurate (i.e by the time it's published it's wrong already) then I thought 1 d.p would be fine.
I'll double check the NES number... although it's only 19.20m vs 19.23m
Edit:
You've raised an interesting point actually. The latest data I have here has-
NES 19.35m
SNES 17.17m
And the others are the same. This does happen sometimes. I guess a miniscule amount of SNESs are still being sold, and didn't Nintendo re-release the NES a few times under various special editions and stuff?
It could also be the result of going back and recalculating the old figures, I dunno.
I'll double check the NES number... although it's only 19.20m vs 19.23m
Edit:
You've raised an interesting point actually. The latest data I have here has-
NES 19.35m
SNES 17.17m
And the others are the same. This does happen sometimes. I guess a miniscule amount of SNESs are still being sold, and didn't Nintendo re-release the NES a few times under various special editions and stuff?
It could also be the result of going back and recalculating the old figures, I dunno.