condition	mean	min	max
4 h after light	7.7	7.7	7.7
8 h after light	20.8	18.3	23.3
12 h after light	16.1	1.9	30.3
4 h after dark	1.55	1.5	1.6
8 h after dark	6.4	2.3	10.5
12 h after dark	8.100000000000001	5.9	10.3