condition	mean	min	max
4 h after light	6.836930000000001	6.38842	7.28544
8 h after light	7.18776	6.89424	7.48128
12 h after light	8.18988	7.85748	8.52228
4 h after dark	10.6709	10.0341	11.3077
8 h after dark	10.710650000000001	10.6511	10.7702
12 h after dark	9.403125	9.19107	9.61518