condition mean min max 0 h after light 2.3979600000000003 2.35116 2.44476 4 h after light 2.01523 1.63907 2.39139 8 h after light 1.911765 1.79181 2.03172 4 h after dark 3.41521 2.89267 3.93775 8 h after dark 2.465275 2.23383 2.69672 12 h after dark 2.26627 1.95318 2.57936