condition	mean	min	max
4 h after light	5.15831	4.62263	5.69399
8 h after light	3.972585	3.73255	4.21262
12 h after light	4.78531	4.7559	4.81472
4 h after dark	5.676185	4.95038	6.40199
8 h after dark	5.816875	5.45172	6.18203
12 h after dark	4.84825	4.63832	5.05818