condition	mean	min	max
4 h after light	1940.1	1940.1	1940.1
8 h after light	1474.15	1345.0	1603.3
12 h after light	1260.45	1125.4	1395.5
4 h after dark	1086.4	1014.0	1158.8
8 h after dark	1196.45	1028.7	1364.2
12 h after dark	1953.35	1479.5	2427.2