condition	mean	min	max
4 h after light	7.1	7.1	7.1
8 h after light	19.3	11.1	27.5
12 h after light	22.45	2.0	42.9
4 h after dark	12.45	9.2	15.7
8 h after dark	5.0	2.1	7.9
12 h after dark	16.5	2.0	31.0