condition	mean	min	max
4 h after light	10.1187	9.3865	10.8509
8 h after light	7.724305	6.70228	8.74633
12 h after light	8.675355	7.92893	9.42178
4 h after dark	15.47605	13.9633	16.9888
8 h after dark	8.45205	8.41467	8.48943
12 h after dark	10.22385	9.9724	10.4753