condition	mean	min	max
4 h after light	19583.8	19583.8	19583.8
8 h after light	18939.800000000003	18598.9	19280.7
12 h after light	13692.599999999999	11428.4	15956.8
4 h after dark	5554.75	1085.2	10024.3
8 h after dark	2792.0	1273.9	4310.1
12 h after dark	6777.9	3923.3	9632.5