condition	mean	min	max
4 h after light	27.2	27.2	27.2
8 h after light	47.9	41.0	54.8
12 h after light	79.6	74.3	84.9
4 h after dark	29.85	18.7	41.0
8 h after dark	9.05	8.7	9.4
12 h after dark	41.75	27.2	56.3