condition	mean	min	max
4 h after light	2.015785	1.61098	2.42059
8 h after light	2.00336	1.70804	2.29868
12 h after light	3.006345	2.84892	3.16377
4 h after dark	3.78832	3.49761	3.99262
8 h after dark	3.5307	2.86446	4.35921
12 h after dark	2.082063333333333	1.82295	2.47408