condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.08663366666666666 0.0 0.259901 6 h after dark 0.0 0.0 0.0 9 h after dark 0.15688166666666667 0.0 0.262064 12 h after dark 0.0 0.0 0.0