What's interesting is that going back to 2000, YVR's international traffic growth has been roughly .8% per year on average. Transborder has been a mere .19% per year on average. In other words international pax traffic is 9.3% higher as of the end of 2011 compared to 2000 and transborder is only 2.2% higher. Something has happened at YVR.
Some of that can be explained away from 9/11, and economic slowdown in 2008-2009 but some of the in-between years are difficult to explain.
http://www.yvr.ca/Libraries/Facts_and_Stats/December_2011_Passenger.sflb.ashx
For example, what happened between 2005 and 2006? The Olympics had no effect whatsoever on pax growth. Other than making the airport look pretty, the airport authority doesn't seem to be grasping the dwindling growth. Might be time for a shake-up at YVR.