condition	mean	min	max
0 h after light	13.42995	13.1134	13.7465
4 h after light	6.78972	6.68858	6.89086
8 h after light	2.73688	2.36855	3.10521
4 h after dark	7.92626	6.10571	9.74681
8 h after dark	8.41825	7.82345	9.01305
12 h after dark	10.351575	8.86465	11.8385