condition	mean	min	max
0 h after light	21.503	20.8874	22.1186
4 h after light	16.97915	16.7769	17.1814
8 h after light	17.50895	17.2076	17.8103
4 h after dark	23.43555	21.5446	25.3265
8 h after dark	22.8812	22.5345	23.2279
12 h after dark	18.54855	18.2736	18.8235