condition	mean	min	max
4 h after light	4.7	4.7	4.7
8 h after light	16.4	8.9	23.9
12 h after light	19.3	9.5	29.1
4 h after dark	7.800000000000001	3.3	12.3
8 h after dark	8.8	7.0	10.6
12 h after dark	20.1	7.1	33.1