condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.087409 0.0 0.262227 12 h after light 0.04444136666666667 0.0 0.0758746 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