condition mean min max 0 h after light 2.48126 2.19056 2.77196 4 h after light 0.7483765 0.587374 0.909379 8 h after light 0.4595545 0.234722 0.684387 4 h after dark 0.453824 0.452929 0.454719 8 h after dark 0.9126965 0.794843 1.03055 12 h after dark 2.063705 0.78841 3.339