condition mean min max 0 h after light 54.79665 53.6959 55.8974 4 h after light 33.0187 31.7082 34.3292 8 h after light 19.0452 17.0451 21.0453 4 h after dark 30.90465 25.5691 36.2402 8 h after dark 39.963449999999995 36.1986 43.7283 12 h after dark 56.80205 49.3702 64.2339