condition	mean	min	max
4 h after light	19.1436	16.1402	22.147
8 h after light	18.6184	17.4789	19.7579
12 h after light	14.8752	12.3624	17.388
4 h after dark	27.393133333333335	21.0378	37.1032
8 h after dark	34.9951	29.9512	40.7626
12 h after dark	25.2322	20.6194	30.257