condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	11.1	4.5	17.7
12 h after light	29.15	20.4	37.9
4 h after dark	15.05	9.3	20.8
8 h after dark	28.05	13.0	43.1
12 h after dark	16.15	14.1	18.2