condition	mean	min	max
4 h after light	8.882010000000001	8.81579	8.94823
8 h after light	2.89832	2.87609	2.92055
12 h after light	7.93624	7.04991	8.82257
4 h after dark	9.46171	9.45384	9.46958
8 h after dark	5.606935	5.49293	5.72094
12 h after dark	4.685365	4.5935	4.77723