condition	mean	min	max
4 h after light	16.7	16.7	16.7
8 h after light	2.1	1.8	2.4
12 h after light	4.0	2.8	5.2
4 h after dark	9.0	2.3	15.7
8 h after dark	7.55	2.9	12.2
12 h after dark	3.0	2.8	3.2