condition	mean	min	max
4 h after light	1303.7	1303.7	1303.7
8 h after light	1224.85	1160.6	1289.1
12 h after light	1208.65	1093.0	1324.3
4 h after dark	1234.55	1127.1	1342.0
8 h after dark	1553.85	1538.5	1569.2
12 h after dark	1752.75	1598.5	1907.0