condition	mean	min	max
4 h after light	2.10481	1.67884	2.53078
8 h after light	3.578255	3.4208	3.73571
12 h after light	7.206825	6.75092	7.66273
4 h after dark	7.589916666666667	6.91181	8.69058
8 h after dark	6.83042	6.08332	8.17711
12 h after dark	3.9943033333333333	3.66272	4.46644