condition	mean	min	max
4 h after light	21.2	21.2	21.2
8 h after light	2.5	2.1	2.9
12 h after light	2.3499999999999996	1.4	3.3
4 h after dark	5.75	3.2	8.3
8 h after dark	13.0	4.7	21.3
12 h after dark	5.699999999999999	3.8	7.6