condition	mean	min	max
0 h after light	7.71924	7.52409	7.91439
4 h after light	6.735609999999999	6.51652	6.9547
8 h after light	7.529985	6.12725	8.93272
4 h after dark	7.17293	7.11251	7.23335
8 h after dark	7.210725	6.76189	7.65956
12 h after dark	5.157585	4.96146	5.35371