condition	mean	min	max
4 h after light	2299.7	2299.7	2299.7
8 h after light	1901.4	1878.0	1924.8
12 h after light	2080.2	1970.7	2189.7
4 h after dark	2000.0	1940.5	2059.5
8 h after dark	1892.9	1789.7	1996.1
12 h after dark	1697.15	1636.5	1757.8