Average Happiness, 2008-2011 (IMAGE)

University of Vermont

Average Happiness, 2008-2011

Caption

A graph of average happiness measured over a three year period running from Sept. 9, 2008 to Aug. 31, 2011, created by scientists at the University of Vermont using data from Twitter. Published in the journal PLoS ONE, Dec. 7, 2011. A regular weekly cycle is clear with the red and blue of Saturday and Sunday typically the high points -- and an overall downward trend in 2010 and 2011 is clear.

Credit

Peter Dodds et al, University of Vermont

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