condition	mean	min	max
4 h after light	8.423945	8.15498	8.69291
8 h after light	8.186499999999999	7.92859	8.44441
12 h after light	9.47555	8.99112	9.95998
4 h after dark	10.314495	9.75339	10.8756
8 h after dark	11.96245	11.5931	12.3318
12 h after dark	9.585280000000001	9.30811	9.86245