condition	mean	min	max
4 h after light	87.4	87.4	87.4
8 h after light	35.8	10.7	60.9
12 h after light	44.95	35.0	54.9
4 h after dark	67.0	65.3	68.7
8 h after dark	70.05	61.4	78.7
12 h after dark	70.0	69.0	71.0