condition	mean	min	max
4 h after light	1227.6	1227.6	1227.6
8 h after light	1340.15	1257.5	1422.8
12 h after light	1246.65	1235.8	1257.5
4 h after dark	1416.8	1331.3	1502.3
8 h after dark	1394.4	1289.2	1499.6
12 h after dark	1449.0	1420.1	1477.9