condition mean min max 0 h after light 1.0860750000000001 1.08511 1.08704 4 h after light 2.345825 1.87225 2.8194 8 h after light 1.767785 1.65686 1.87871 4 h after dark 1.4954749999999999 1.22557 1.76538 8 h after dark 1.2898665 0.801523 1.77821 12 h after dark 1.92638 1.67966 2.1731