CREATE TABLE table_23805 ("BSE Code" TEXT, "Company" TEXT, "City" TEXT, "GICS Sector" TEXT, "Free float" TEXT, "Index weighting  ( %" TEXT)

What is every GICS sector for free float of 0.3180?
SELECT "GICS Sector" FROM table_23805 WHERE "Free float" = '0.3180'
SELECT "GICS Sector" FROM "table_23805" WHERE "Free float" = '0.3180'