condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.034396 0.0 0.103188 12 h after light 0.04521366666666667 0.0 0.135641 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