condition	mean	min	max
4 h after light	1938.2	1938.2	1938.2
8 h after light	2000.7	1936.4	2065.0
12 h after light	1843.3500000000001	1601.9	2084.8
4 h after dark	1767.9499999999998	1757.8	1778.1
8 h after dark	1862.45	1687.2	2037.7
12 h after dark	1998.55	1986.6	2010.5