condition	mean	min	max
4 h after light	21.3881	19.9351	22.8411
8 h after light	19.718600000000002	19.0194	20.4178
12 h after light	20.04975	18.6615	21.438
4 h after dark	24.13385	22.2429	26.0248
8 h after dark	31.60175	31.2185	31.985
12 h after dark	30.1177	29.2101	31.0253