condition mean min max 3 h after light 55.94513333333333 49.0982 60.6229 6 h after light 56.1357 48.8025 61.3351 9 h after light 65.6517 57.9517 75.4361 12 h after light 75.031875 70.5887 83.467 3 h after dark 70.45116666666667 64.0418 74.6063 6 h after dark 68.80069999999999 62.7941 79.2653 9 h after dark 62.96556666666667 56.222 66.903 12 h after dark 64.41485 63.8315 64.9982