condition mean min max 4 h after light 11.987295 9.84479 14.1298 8 h after light 16.2624 14.8124 17.7124 12 h after light 40.38935 27.5269 53.2518 4 h after dark 35.351549999999996 25.8451 44.858 8 h after dark 17.35775 16.4026 18.3129 12 h after dark 11.764990000000001 9.98528 13.5447