condition mean min max 1 h after light 18.13311812 16.35701385 19.90922239 3 h after light 17.476674023333334 16.22860194 19.234790399999998 5 h after light 19.962867823333333 19.522218300000002 20.67701831 7 h after light 21.42180662 17.80639142 23.25283897 9 h after light 27.17767266 23.83066987 31.47752297 11 h after light 26.456289536666667 23.33036438 29.89830953 1 h after dark 27.402468703333334 26.36762286 28.27820839 3 h after dark 30.958688093333333 26.84535368 35.57948977 5 h after dark 27.493367476666666 25.01647967 29.01676453 7 h after dark 24.90183138 21.27274248 28.62983493 9 h after dark 24.215936603333333 23.08198223 25.91946657 11 h after dark 22.337794643333332 20.16109485 25.79275496