condition	mean	min	max
4 h after light	6.129235	4.79311	7.46536
8 h after light	7.56188	7.26673	7.85703
12 h after light	8.024564999999999	7.82924	8.21989
4 h after dark	9.466205	9.27912	9.65329
8 h after dark	7.7219750000000005	7.64045	7.8035
12 h after dark	7.98504	7.75665	8.21343