condition	mean	min	max
4 h after light	1678.8	1678.8	1678.8
8 h after light	1611.35	1479.1	1743.6
12 h after light	1441.75	1405.3	1478.2
4 h after dark	1604.75	1313.8	1895.7
8 h after dark	1645.25	1572.6	1717.9
12 h after dark	1593.8	1449.1	1738.5