condition	mean	min	max
4 h after light	11.1	11.1	11.1
8 h after light	78.55	56.6	100.5
12 h after light	18.35	16.4	20.3
4 h after dark	27.15	25.4	28.9
8 h after dark	19.15	13.3	25.0
12 h after dark	13.7	13.6	13.8