All Users Stats refers to the average percentage of all users enrolled in the same program session as you.
We include this stat so that you can compare your performance to other users' performance. However, don't place too much importance on it, this statistic includes users who enrolled months ago and are well into their preparation as well as users who enrolled yesterday and have a 0%.
Please note: If you do not wish to see User Stats, you may disable them in the Settings page of the program.