condition	mean	min	max
4 h after light	5.147285	4.95656	5.33801
8 h after light	7.6499	7.10111	8.19869
12 h after light	7.399985	6.42633	8.37364
4 h after dark	16.43825	14.2131	18.6634
8 h after dark	7.820684999999999	6.91631	8.72506
12 h after dark	6.6849050000000005	6.55117	6.81864