condition	mean	min	max
4 h after light	7.77845	3.71498	11.0934
8 h after light	6.494413000000001	0.982319	11.7199
12 h after light	5.356896666666667	3.79868	7.08243
4 h after dark	9.145573333333333	5.99097	12.075
8 h after dark	11.15202	6.06766	15.8289
12 h after dark	15.6034	15.4108	15.7931