condition mean min max 2 h after light 2.1031833333333334 1.75081 2.43105 6 h after light 1.73653 1.60379 1.83384 10 h after light 2.06509 2.02381 2.12239 2 h after dark 1.6658733333333333 1.55149 1.7941 6 h after dark 1.25153 0.98395 1.48711 10 h after dark 1.064165 0.905855 1.14647