The airline industry expects the first annual decline in global passenger demand in 11 years, after tallying up the initial impact of the thousands of flights cancelled because of the coronavirus outbreak in China. The estimate shaves about 4.7 percentage points off of a passenger-traffic forecast issued just two months ago, with almost all of the impact in the Asia-Pacific region, according to the International Air Transport Association. The drop would be the first overall decline since the financial crisis of 2008-2009.