condition	mean	min	max
4 h after light	8.812638	8.517419	9.107857
8 h after light	8.419709999999998	8.056845	8.782575
12 h after light	8.4900235	8.147767	8.83228
4 h after dark	8.8705505	8.782575	8.958526
8 h after dark	8.708609	8.634643	8.782575
12 h after dark	8.461395	8.461395	8.461395