condition mean min max 0 h after light 48.98005 48.2101 49.75 4 h after light 32.31765 30.8761 33.7592 8 h after light 52.24485 49.3286 55.1611 4 h after dark 57.67175 53.0128 62.3307 8 h after dark 44.95445 44.9093 44.9996 12 h after dark 39.584599999999995 36.4466 42.7226