Study: 'Best year ever' for U.S. airlines

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Despite widespread perceptions that airline service is deteriorating, 2011 was the "best year ever" for airline performance, according to independent experts who have been studying data for the past 21 years.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Ju1NdtiG-x4:EwsNu0OwAkQ:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Ju1NdtiG-x4:EwsNu0OwAkQ:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=Ju1NdtiG-x4:EwsNu0OwAkQ:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Ju1NdtiG-x4:EwsNu0OwAkQ:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Ju1NdtiG-x4:EwsNu0OwAkQ:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=Ju1NdtiG-x4:EwsNu0OwAkQ:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Ju1NdtiG-x4:EwsNu0OwAkQ:gIN9vFwOqvQ)
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