When do Level I candidates do practice problems? (Graph)

We put together our data from the June 2015 sitting to see when candidates start doing practice exams and quizzes. Of course there are a lot before the exam, but I was surprised at how the number started increasing 60 to 45 days out from the exam.

Check out this post with a graph:
http://blog.adaptprep.com/when-do-level-i-candidates-do-practice-problems/

Note that AdaptPrep practice comes with flexible subscriptions (3, 7, 15, 30, 45, 60 days, etc.) starting at $41.