condition	mean	min	max
4 h after light	16.6	16.6	16.6
8 h after light	17.75	4.8	30.7
12 h after light	17.55	8.1	27.0
4 h after dark	8.7	7.5	9.9
8 h after dark	9.6	2.5	16.7
12 h after dark	26.65	25.3	28.0