condition	mean	min	max
4 h after light	2097.8	2097.8	2097.8
8 h after light	1957.05	1823.0	2091.1
12 h after light	1516.35	1375.5	1657.2
4 h after dark	1681.85	1356.8	2006.9
8 h after dark	2248.65	1856.7	2640.6
12 h after dark	2536.25	2319.1	2753.4