condition	mean	min	max
4 h after light	14.8	14.8	14.8
8 h after light	17.6	9.2	26.0
12 h after light	9.9	6.0	13.8
4 h after dark	39.85	13.3	66.4
8 h after dark	21.75	14.4	29.1
12 h after dark	14.2	10.6	17.8