condition mean min max 4 h after light 0.477263 0.125372 1.17245 8 h after light 0.551585 0.180823 0.893087 12 h after light 0.7132043333333333 0.659485 0.811634 4 h after dark 0.5418366666666666 0.405885 0.692823 8 h after dark 0.5846926666666666 0.335505 1.01973 12 h after dark 0.313251 0.206224 0.395822