condition	mean	min	max
0 h after light	8.521795000000001	8.34278	8.70081
4 h after light	8.2441	6.86282	9.62538
8 h after light	15.6901	13.918	17.4622
4 h after dark	11.437000000000001	11.231	11.643
8 h after dark	8.544115	8.4468	8.64143
12 h after dark	7.243925	7.16416	7.32369