As mentioned earlier, there was a significant change in the methodology to account for internal services within the federal government. Treasury Board Secretariat issued guidelines on what should be seen within any internal service program activity, which has led to a shift over the years, so that explains partly that.
Another explanation is that 2014-15 was the tail end of the Office of the Privacy Commissioner's move. We moved our offices from downtown Ottawa to downtown Gatineau. As a result of that, at the tail end of this, there was a bit more internal services expenditures to account for the move, which was a corporate expense. That explains the fluctuations over the years.