condition mean min max 4 h after light 48.394 44.6346 52.1534 8 h after light 33.89895 30.1019 37.696 12 h after light 34.0725 33.4499 34.6951 4 h after dark 48.268566666666665 44.1453 51.0028 8 h after dark 44.9523 40.2416 47.5413 12 h after dark 42.0369 37.2061 45.3774