Country  Number of participants  Mean stress level (SD)  Country  Number of participants  Mean stress level (SD)
Argentina  2286  17.53 (7.38)  Indonesia  938  18.00 (5.75)
Belgium  339  16.38 (7.27)  Italy  525  16.04 (6.89)
Bosnia and Herzegovina  660  18.95 (6.73)  Japan  3190  20.08 (5.74)
Bulgaria  2413  18.78 (7.10)  Lithuania  4450  15.32 (6.88)
Canada  307  17.81 (6.66)  Mexico  5781  17.33 (7.32)
Croatia  900  19.55 (6.75)  Poland  2094  20.19 (7.28)
Czech Republic  461  17.54 (6.95)  Portugal  425  18.81 (7.25)
Denmark  5200  14.22 (7.21)  Spain  363  16.80 (7.19)
Finland  7464  14.85 (7.50)  Switzerland  719  13.93 (6.66)
France  9395  15.71 (7.38)  Taiwan  869  15.97 (6.85)
Germany  616  16.52 (6.87)  Turkey  683  21.71 (6.67)
Greece  304  17.43 (6.41)  United Kingdom  886  17.53 (7.50)
Hungary  745  17.60 (6.06)  United States  1511  17.50 (7.36)