CREATE TABLE table_3566 ("Contestant" TEXT, "Place" FLOAT, "Age" FLOAT, "Country" TEXT, "Federal state" TEXT, "City" TEXT, "Height" TEXT, "Measurements  ( in cm ) " TEXT)

for how many federal states is the city of lahnstein listed in the ranking?
SELECT COUNT("Federal state") FROM table_3566 WHERE "City" = 'Lahnstein'
SELECT COUNT("Federal state") FROM "table_3566" WHERE "City" = 'Lahnstein'