condition	mean	min	max
4 h after light	8.186475	6.58152	9.79143
8 h after light	6.864625	6.7175	7.01175
12 h after light	8.761050000000001	8.20844	9.31366
4 h after dark	12.4581	11.6946	13.2216
8 h after dark	10.723949999999999	10.2671	11.1808
12 h after dark	9.343805	9.11064	9.57697