condition	mean	min	max
0 h after light	2.211105	2.08875	2.33346
4 h after light	1.83472	1.7637	1.90574
8 h after light	2.03601	1.67941	2.39261
4 h after dark	2.47438	2.21311	2.73565
8 h after dark	2.00936	1.96286	2.05586
12 h after dark	2.11744	1.83563	2.39925