condition	mean	min	max
4 h after light	1558.9	1558.9	1558.9
8 h after light	1344.0	1299.4	1388.6
12 h after light	1204.0	1195.7	1212.3
4 h after dark	1374.3	1133.1	1615.5
8 h after dark	1529.9	1375.1	1684.7
12 h after dark	1520.55	1412.3	1628.8