condition	mean	min	max
4 h after light	1953.5	1953.5	1953.5
8 h after light	1606.2	1480.9	1731.5
12 h after light	1682.0500000000002	1666.4	1697.7
4 h after dark	1534.5	1494.1	1574.9
8 h after dark	1388.6	1174.6	1602.6
12 h after dark	1470.1	1255.5	1684.7