condition	mean	min	max
4 h after light	1656.4	1656.4	1656.4
8 h after light	1842.4	1729.7	1955.1
12 h after light	2058.6	1980.3	2136.9
4 h after dark	1993.3	1992.6	1994.0
8 h after dark	1867.4	1849.6	1885.2
12 h after dark	1613.0	1520.5	1705.5