condition	mean	min	max
4 h after light	9857.0	9857.0	9857.0
8 h after light	8875.05	8801.0	8949.1
12 h after light	7249.35	6563.3	7935.4
4 h after dark	7862.9	6885.0	8840.8
8 h after dark	8869.95	7609.0	10130.9
12 h after dark	8815.05	8641.8	8988.3