condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.36762 0.0 1.10286 12 h after light 0.0 0.0 0.0 3 h after dark 1.35462 0.0 2.88551 6 h after dark 0.7660966666666668 0.0 2.29829 9 h after dark 0.0 0.0 0.0 12 h after dark 1.1019966666666667 0.0 3.30599