condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0082078 0.0 0.0246234 12 h after light 0.0 0.0 0.0 4 h after dark 0.021393366666666667 0.0 0.0641801 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0