condition mean min max 0 h after light 4.61005 4.48956 4.73054 4 h after light 3.63736 3.54188 3.73284 8 h after light 3.57584 3.51199 3.63969 4 h after dark 5.529725 5.29562 5.76383 8 h after dark 4.6081199999999995 4.59228 4.62396 12 h after dark 3.793625 3.76514 3.82211