condition	mean	min	max
4 h after light	19.9	19.9	19.9
8 h after light	11.4	9.3	13.5
12 h after light	9.850000000000001	9.4	10.3
4 h after dark	19.2	12.1	26.3
8 h after dark	22.05	15.5	28.6
12 h after dark	14.8	13.7	15.9