condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0093773 0.0 0.0187546 4 h after dark 0.0 0.0 0.0 8 h after dark 0.018319266666666667 0.0 0.0549578 12 h after dark 0.0 0.0 0.0