condition	mean	min	max
4 h after light	24.2	24.2	24.2
8 h after light	16.75	14.9	18.6
12 h after light	12.2	1.9	22.5
4 h after dark	19.1	15.8	22.4
8 h after dark	20.45	5.1	35.8
12 h after dark	21.05	20.3	21.8