condition mean min max 3 h after light 17.672566666666665 15.4331 20.133 6 h after light 13.064933333333334 6.63307 23.4417 9 h after light 18.531200000000002 15.9694 21.4093 12 h after light 36.262975 27.4686 51.7043 3 h after dark 71.17736666666667 69.9573 71.8837 6 h after dark 112.734 106.224 121.003 9 h after dark 126.697 109.505 139.025 12 h after dark 62.636250000000004 59.1967 66.0758