condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.01522205 0.0 0.0304441 12 h after light 0.0 0.0 0.0 4 h after dark 0.0162494 0.0 0.0324988 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0320671 0.0 0.0641342