condition	mean	min	max
4 h after light	1510.9	1510.9	1510.9
8 h after light	1507.75	1497.1	1518.4
12 h after light	1432.4	1368.4	1496.4
4 h after dark	1560.2	1438.4	1682.0
8 h after dark	1528.1999999999998	1525.8	1530.6
12 h after dark	1481.35	1464.7	1498.0