condition	mean	min	max
4 h after light	1797.5	1797.5	1797.5
8 h after light	1848.6	1828.3	1868.9
12 h after light	1967.0	1893.7	2040.3
4 h after dark	1905.05	1875.0	1935.1
8 h after dark	1781.9	1583.4	1980.4
12 h after dark	1778.0	1730.8	1825.2