condition	mean	min	max
4 h after light	19.20715	17.8355	20.5788
8 h after light	21.01045	19.9116	22.1093
12 h after light	20.075	20.0403	20.1097
4 h after dark	32.93925	32.0035	33.875
8 h after dark	30.15715	29.6383	30.676
12 h after dark	26.2545	25.3525	27.1565