condition mean min max 0 h after light 1.738715 1.61931 1.85812 2 h after light 1.12787 1.06367 1.19207 4 h after light 1.146555 1.07885 1.21426 8 h after light 1.0025645 0.639649 1.36548 12 h after light 1.335145 1.15527 1.51502 2 h after dark 1.247793 0.910936 1.58465 4 h after dark 2.12536 1.95598 2.29474 8 h after dark 2.58235 2.18948 2.97522 12 h after dark 1.340605 1.22785 1.45336