condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.237766 0.0 0.442143 12 h after light 0.32666366666666663 0.0 0.979991 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0