condition	mean	min	max
0 h after light	7.820655	7.32304	8.31827
4 h after light	7.957425	7.95283	7.96202
8 h after light	7.584205	7.31283	7.85558
4 h after dark	9.612655	9.28364	9.94167
8 h after dark	10.22195	10.0544	10.3895
12 h after dark	7.34516	7.26428	7.42604