condition	mean	min	max
4 h after light	1407.2	1407.2	1407.2
8 h after light	1346.1	1317.6	1374.6
12 h after light	1196.5	1172.6	1220.4
4 h after dark	1242.65	1003.0	1482.3
8 h after dark	979.7	933.5	1025.9
12 h after dark	931.45	862.7	1000.2