condition	mean	min	max
4 h after light	1.83893	1.38071	2.29715
8 h after light	3.26924	3.19285	3.34563
12 h after light	3.71978	3.3999	4.03966
4 h after dark	8.69402	8.58106	8.78379
8 h after dark	3.76831	3.40686	4.05367
12 h after dark	2.735116666666667	2.41149	3.02441