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_name_5 ( seats_2006 INTEGER, parties_and_voter_communities VARCHAR, _percentage_2006 VARCHAR )

### Question ###
What is the highest number of Seats 2006 held by the communities of B rger F r Gro -Rohrheim Party/Voter Community, with a %2006 less than 21.3?

### Accurate SQL ###

SELECT MAX(seats_2006) FROM table_name_5 WHERE parties_and_voter_communities = "bürger für groß-rohrheim" AND _percentage_2006 < 21.3