condition	mean	min	max
3 h after light	6.10722	4.41465	7.80336
6 h after light	6.536556666666667	5.83063	7.48116
9 h after light	9.136176666666668	7.83187	11.3169
12 h after light	9.062529999999999	4.95209	12.11
3 h after dark	13.3726	12.5143	14.4092
6 h after dark	10.25264	9.77382	10.9787
9 h after dark	7.393356666666667	4.65896	9.61482
12 h after dark	3.358885	3.00484	3.71293