They were just airlines that were just different classes based on a history and structure.

Q And, Mo, what's the time period on these exhibits?

A 2000 is the time period. And I picked 2000. I could have picked any year. It wouldn't have made much difference what year I picked. But I picked the year before the decade of turbulence in the industry, before 9-11. This was the -- as we started in 2000, we come through a relatively benign decade in the 1990s compared to what was lying ahead for the industry.