condition	mean	min	max
4 h after light	7.3331	6.47697	8.18923
8 h after light	6.121125	5.96711	6.27514
12 h after light	6.47264	6.12503	6.82025
4 h after dark	8.614556666666667	7.98712	9.05265
8 h after dark	9.201416666666667	7.81291	10.439
12 h after dark	7.385456666666666	5.64258	8.38257