condition	mean	min	max
4 h after light	8.7158725	8.68995	8.741795
8 h after light	8.299806	8.111339	8.488273
12 h after light	9.0429035	8.782575	9.303232
4 h after dark	8.3575675	8.175347	8.539788
8 h after dark	9.0607135	8.263752	9.857675
12 h after dark	9.162754	9.162754	9.162754