condition	mean	min	max
4 h after light	7.289865	6.10707	8.47266
8 h after light	5.96617	5.74505	6.18729
12 h after light	5.84244	5.44133	6.24355
4 h after dark	8.28934	7.97454	8.4784
8 h after dark	9.978816666666667	9.80146	10.1513
12 h after dark	8.519563333333332	8.26499	8.88251