condition	mean	min	max
4 h after light	13.244599999999998	11.4249	15.0643
8 h after light	7.98656	7.94528	8.02784
12 h after light	9.574835	9.25533	9.89434
4 h after dark	8.937755	8.79809	9.07742
8 h after dark	12.07125	12.0345	12.108
12 h after dark	14.67625	14.2221	15.1304