condition mean min max 0 h after light 38.48605 37.924 39.0481 2 h after light 15.0114 12.3018 17.721 4 h after light 16.18905 16.1202 16.2579 8 h after light 13.36335 12.0872 14.6395 12 h after light 19.584 17.3845 21.7835 2 h after dark 20.444049999999997 19.6542 21.2339 4 h after dark 39.60965 32.5492 46.6701 8 h after dark 57.6066 49.1958 66.0174 12 h after dark 34.9844 30.6351 39.3337