condition	mean	min	max
4 h after light	1943.1	1943.1	1943.1
8 h after light	1612.7	1537.5	1687.9
12 h after light	1359.6	1244.2	1475.0
4 h after dark	1400.45	1104.2	1696.7
8 h after dark	1940.8500000000001	1619.4	2262.3
12 h after dark	2417.9	2141.0	2694.8