condition	mean	min	max
4 h after light	1870.1	1870.1	1870.1
8 h after light	1855.4	1561.8	2149.0
12 h after light	1173.75	889.7	1457.8
4 h after dark	879.05	735.4	1022.7
8 h after dark	1111.1	714.9	1507.3
12 h after dark	2086.25	1826.5	2346.0