user: Question: How many households have a Median household income of $43,889?
Columns: ['County', 'Per capita income', 'Median household income', 'Median family income', 'Population', 'Number of households']
Types: ['text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Dallas', '$33,051', '$67,037', '$84,018', 66135.0, 25240.0]
SQL:

assistant: SELECT SUM("Number of households") FROM "Table" WHERE "Median household income" = '$43,889';