CREATE TABLE table_76814 ("1976" TEXT, "1977" TEXT, "1978" TEXT, "1979" TEXT, "1980" TEXT)

what is 1976 when 1977 is 3.5?
SELECT "1976" FROM table_76814 WHERE "1977" = '3.5'
SELECT "1976" FROM "table_76814" WHERE "1977" = '3.5'