condition mean min max 0 h after light 18.933500000000002 18.3155 19.5515 4 h after light 22.93825 22.6415 23.235 8 h after light 134.762 123.252 146.272 4 h after dark 102.20734999999999 86.5987 117.816 8 h after dark 55.4425 54.8768 56.0082 12 h after dark 18.981299999999997 17.9927 19.9699