condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0634316 0.0 0.160446 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.04128066666666667 0.0 0.123842 12 h after dark 0.0 0.0 0.0