condition	mean	min	max
4 h after light	13709.7	13709.7	13709.7
8 h after light	10692.0	8505.3	12878.7
12 h after light	7596.5	4117.7	11075.3
4 h after dark	2959.9	1466.3	4453.5
8 h after dark	1940.3	1425.4	2455.2
12 h after dark	4912.0	2790.4	7033.6