condition	mean	min	max
4 h after light	9.181944999999999	8.99234	9.37155
8 h after light	5.4764800000000005	5.18131	5.77165
12 h after light	1.920035	1.82644	2.01363
4 h after dark	3.42282	2.51115	4.0359
8 h after dark	3.0085900000000003	2.89014	3.09405
12 h after dark	9.185080000000001	8.66952	9.62312