The AZ real estate market is very different from what is seen both with and outside the "sand states" of Cal, Nev, Fla & AZ; bcuz the bulk of the snowbird in AZ are from different states of U.S. and from different provinces of Canada.
What this report tells U.S. is that Canadian snowbirds are a very important factor in AZ's real estate market.
However, keep in mind that the Canadian Dollar - the Loonie - is now almost at par, again. That makes it VERY desirable for them to come down here and buy - their money is now worth 25% more than a few years ago, AND property in some parts of AZ is very cheap - compared to back home in Canada OR in Cal or Fla.