condition	mean	min	max
4 h after light	1544.4	1544.4	1544.4
8 h after light	1510.15	1504.6	1515.7
12 h after light	1650.25	1628.7	1671.8
4 h after dark	1637.7	1536.9	1738.5
8 h after dark	1787.35	1764.4	1810.3
12 h after dark	1534.75	1485.3	1584.2