Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_42948 ( "Federal State" text, "Number of Members" real, "% Of total Members" text, "Population (on the census also called Censo 2010)" text, "% Of the population (Censo 2010)" text, "Representativeness (Inhabitants / Mr)" text, "Representatives of national average" text, "Deputies required ignoring the limits" real )

### Question ###
According to the 2010 census, what was the population for the federal state that had less than -6 deputies required ignoring the limits?

### Accurate SQL ###

SELECT "Population (on the census also called Censo 2010)" FROM table_42948 WHERE "Deputies required ignoring the limits" < '-6'