condition	mean	min	max
4 h after light	1882.8	1882.8	1882.8
8 h after light	1776.9	1681.3	1872.5
12 h after light	1701.0	1417.4	1984.6
4 h after dark	1667.65	1446.3	1889.0
8 h after dark	1639.0	1505.4	1772.6
12 h after dark	1813.25	1653.5	1973.0