condition	mean	min	max
4 h after light	9.547083333333333	4.51215	13.9219
8 h after light	5.334953333333333	1.40318	9.25879
12 h after light	5.14833	2.75341	7.40887
4 h after dark	8.21435	5.66693	10.4629
8 h after dark	9.341543333333334	5.98514	12.0875
12 h after dark	19.2475	13.7625	28.0727