condition	mean	min	max
4 h after light	35.4	35.4	35.4
8 h after light	68.9	59.1	78.7
12 h after light	96.3	96.1	96.5
4 h after dark	85.2	81.0	89.4
8 h after dark	81.15	80.7	81.6
12 h after dark	60.8	41.1	80.5