Editor's Note: Gallup re-estimated its Gallup-Healthways Well-Being Index and Life Evaluation Index data from January 2008 to April 2009 to address context effects that Gallup discovered after the data were originally published.
U.S. leadership gets highest approval ratings, Russia lowest
Has the U.S. economy really recovered? How many people worldwide have great jobs? Gallup.com tackled these and other questions in 2016.
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