condition	mean	min	max
4 h after light	7.3	7.3	7.3
8 h after light	37.5	28.5	46.5
12 h after light	24.0	20.8	27.2
4 h after dark	4.25	2.7	5.8
8 h after dark	17.0	4.4	29.6
12 h after dark	29.0	18.6	39.4