CREATE TABLE table_7702 ("Name/ designation" CLOB, "Year of intro" FLOAT, "Country of origin" CLOB, "Primary cartridge" CLOB, "Type" CLOB)

What is Country of Origin, when Year of Intro is 1977?
SELECT "Country of origin" FROM table_7702 WHERE "Year of intro" = '1977'
SELECT "Country of origin" FROM "table_7702" WHERE "Year of intro" = '1977'