condition	mean	min	max
4 h after light	2179.5	2179.5	2179.5
8 h after light	1956.15	1885.3	2027.0
12 h after light	1715.55	1486.1	1945.0
4 h after dark	1963.85	1493.8	2433.9
8 h after dark	1971.65	1963.5	1979.8
12 h after dark	1975.4	1803.0	2147.8