condition	mean	min	max
4 h after light	25.32125	21.2552	29.3873
8 h after light	16.8287	16.8136	16.8438
12 h after light	11.011849999999999	10.3921	11.6316
4 h after dark	9.055855000000001	8.90624	9.20547
8 h after dark	11.72965	11.1014	12.3579
12 h after dark	20.5891	20.4519	20.7263