Fig. 5
The monthly percentage of participants who responded ‘decreased sleeping hours’ with cross-tabulations. Blue: Nordic countries (n = 40); Red: Southeast Asia (n = 51); Green: Japan (n = 96); Purple: UK (n = 105). 
Nordic countries (n = 40). 
Southeast Asia (n = 51). 
Japan (n = 96). 
U.K. (n = 105)