condition	mean	min	max
4 h after light	1551.3	1551.3	1551.3
8 h after light	1360.65	1238.0	1483.3
12 h after light	1342.1	1144.0	1540.2
4 h after dark	1521.5	1263.3	1779.7
8 h after dark	1424.0	1275.3	1572.7
12 h after dark	1326.3	1118.1	1534.5