condition	mean	min	max
4 h after light	2.49088	1.97374	3.00802
8 h after light	3.096865	2.65878	3.53495
12 h after light	3.764595	3.20607	4.32312
4 h after dark	7.495426666666667	6.45901	8.18889
8 h after dark	7.1053500000000005	6.46316	7.63053
12 h after dark	5.322613333333334	4.54309	6.56949