condition	mean	min	max
4 h after light	1507.2	1507.2	1507.2
8 h after light	1438.4	1182.2	1694.6
12 h after light	1525.75	1460.6	1590.9
4 h after dark	1587.85	1359.4	1816.3
8 h after dark	1802.25	1633.6	1970.9
12 h after dark	1651.65	1599.7	1703.6