Steam rcon stats question

[darkspider]

CPU In Out Uptime Users FPS Players
80.30 70465.91 406501.81 521 25 16.00 36

What is the 'In' and 'Out' measured in? I hope it isn't kilobytes.

[Muppet]

If Kilobytes then that would make it ~70mb and ~406mb over nearly 9 hours.

And with only 36 users connected over the 9 hours, those seem too high, so i assume it would be in Bytes.