condition	mean	min	max
4 h after light	2050.6	2050.6	2050.6
8 h after light	1943.95	1918.7	1969.2
12 h after light	2200.45	1764.1	2636.8
4 h after dark	2219.3	1888.7	2549.9
8 h after dark	1820.95	1817.7	1824.2
12 h after dark	1688.0	1686.8	1689.2