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_26204 ( "Country" text, "% of all immigrants 2008" text, "% of all immigrants 2007" text, "% of all immigrants 2006" text, "% of all immigrants 2005" text, "% of all immigrants 2004" text )

### Question ###
What's the percentage of immigrants in 2004 in the country with 2.1% of the immigrants in 2006?

### Accurate SQL ###

SELECT "% of all immigrants 2004" FROM table_26204 WHERE "% of all immigrants 2006" = '2.1%'