condition	mean	min	max
4 h after light	21.067549999999997	20.4229	21.7122
8 h after light	31.9748	28.4925	35.4571
12 h after light	17.2621	11.5478	22.9764
4 h after dark	40.674350000000004	39.1117	42.237
8 h after dark	38.37285	32.8774	43.8683
12 h after dark	25.55095	24.8982	26.2037