CREATE TABLE table_56802 ("Parties and voter communities" TEXT, "% 2006" FLOAT, "Seats 2006" FLOAT, "% 2001" FLOAT, "Seats 2001" FLOAT)

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?
SELECT MAX("Seats 2006") FROM table_56802 WHERE "Parties and voter communities" = 'bürger für groß-rohrheim' AND "% 2006" < '21.3'
SELECT MAX("Seats 2006") FROM "table_56802" WHERE "% 2006" < '21.3' AND "Parties and voter communities" = 'bürger für groß-rohrheim'