condition	mean	min	max
4 h after light	8.23951	7.86892	8.6101
8 h after light	8.892	8.60519	9.17881
12 h after light	9.46895	8.6245	10.3134
4 h after dark	13.32115	13.1207	13.5216
8 h after dark	14.069600000000001	11.9809	16.1583
12 h after dark	9.524725	9.28141	9.76804