condition	mean	min	max
4 h after light	8.476115	8.31194	8.64029
8 h after light	6.523899999999999	6.31347	6.73433
12 h after light	12.2776	11.6713	12.8839
4 h after dark	14.5602	13.6131	15.5073
8 h after dark	13.1354	12.7528	13.518
12 h after dark	11.355350000000001	11.0791	11.6316