condition	mean	min	max
4 h after light	12.28355	10.2231	14.344
8 h after light	7.431515	6.3186	8.54443
12 h after light	6.82768	6.60811	7.04725
4 h after dark	7.7093766666666665	6.85164	8.28133
8 h after dark	11.244633333333335	10.1178	12.5509
12 h after dark	13.4902	12.6923	14.6368