condition	mean	min	max
4 h after light	20.7	20.7	20.7
8 h after light	29.85	28.9	30.8
12 h after light	8.8	7.8	9.8
4 h after dark	7.05	5.1	9.0
8 h after dark	6.8	5.0	8.6
12 h after dark	20.75	8.0	33.5