What are the grading system cut-off points?

[mattandhis3degus]

I was just curious as to how many posts you need to have made for each degu grade name. I saw in another part of the forum that there were the following grades - newborn, warbling, foraging, burrowing, leaping, zooming - but didn't want to post to an old thread.

[deguconvert]

0, 25, 50, 125, 300, 500.