It's hard to tell because we had historical data about what used to be copied, at least part of what used to be copied because before 2013, when they stopped paying, in the post-secondary level they would report to us all copies that were made and included in course packs, in paper course packs.
Today we don't know what gets copied. What we do know is only from the study that we did with York University and in the context of that litigation.