condition	mean	min	max
4 h after light	9.8	9.8	9.8
8 h after light	22.7	17.2	28.2
12 h after light	47.55	35.3	59.8
4 h after dark	25.2	13.0	37.4
8 h after dark	19.1	17.7	20.5
12 h after dark	13.2	11.5	14.9