condition	mean	min	max
4 h after light	7.864783	7.820455	7.909111
8 h after light	9.130660500000001	8.273035	9.988286
12 h after light	8.096377	8.026012	8.166742
4 h after dark	8.189468	8.026012	8.352924
8 h after dark	8.096377	8.026012	8.166742
12 h after dark	7.671887	7.671887	7.671887