condition	mean	min	max
4 h after light	8.1	8.1	8.1
8 h after light	19.6	9.2	30.0
12 h after light	13.85	11.0	16.7
4 h after dark	11.6	8.0	15.2
8 h after dark	15.049999999999999	3.9	26.2
12 h after dark	21.5	20.9	22.1