condition mean min max 0 h after light 0.0397561 0.0 0.0795122 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0370908 0.0 0.0741816 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.120172 0.0 0.240344 12 h after dark 0.0 0.0 0.0