condition	mean	min	max
4 h after light	9.0	9.0	9.0
8 h after light	22.9	6.4	39.4
12 h after light	13.25	11.8	14.7
4 h after dark	17.25	11.1	23.4
8 h after dark	46.95	21.6	72.3
12 h after dark	28.8	8.4	49.2