condition mean min max 3 h after light 41.8648 38.4375 46.3371 6 h after light 36.179433333333336 35.0829 37.1791 9 h after light 33.61736666666667 30.8506 37.5714 12 h after light 36.0484 32.7439 40.4859 3 h after dark 48.6547 43.8331 54.2172 6 h after dark 73.7132 71.1921 76.9886 9 h after dark 54.70766666666667 51.5043 58.4549 12 h after dark 30.1844 27.7165 34.0674