condition	mean	min	max
4 h after light	3.8	3.8	3.8
8 h after light	7.699999999999999	2.8	12.6
12 h after light	2.55	1.9	3.2
4 h after dark	3.3	2.3	4.3
8 h after dark	3.55	3.4	3.7
12 h after dark	1.9	1.8	2.0