condition mean min max 4 h after light 2.7678599999999998 2.39754 3.13818 8 h after light 2.061345 1.86308 2.25961 12 h after light 3.4173999999999998 3.01897 3.81583 4 h after dark 4.201393333333334 4.07204 4.43385 8 h after dark 4.248273333333334 3.83357 4.75427 12 h after dark 3.58299 3.16683 4.08593