condition	mean	min	max
4 h after light	8.6150125	8.607143	8.622882
8 h after light	8.156631	7.727404	8.585858
12 h after light	8.0520545	7.40534	8.698769
4 h after dark	9.231545	8.66994	9.79315
8 h after dark	8.4098425	8.060668	8.759017
12 h after dark	9.704861	9.704861	9.704861