condition	mean	min	max
4 h after light	4.733285	4.71488	4.75169
8 h after light	5.15605	0.0	10.3121
12 h after light	8.203955	7.05276	9.35515
4 h after dark	15.5151	14.5917	16.4385
8 h after dark	10.25195	10.2066	10.2973
12 h after dark	9.49673	6.82826	12.1652