condition	mean	min	max
4 h after light	2091.5	2091.5	2091.5
8 h after light	1946.15	1907.7	1984.6
12 h after light	1917.65	1717.3	2118.0
4 h after dark	1981.9	1912.8	2051.0
8 h after dark	1882.0	1755.1	2008.9
12 h after dark	1971.35	1884.5	2058.2