CREATE TABLE table_61581 ("Player" TEXT, "Country" TEXT, "Year ( s )  won" TEXT, "Total" FLOAT, "To par" TEXT, "Finish" TEXT)

Which country won in 1988?
SELECT "Country" FROM table_61581 WHERE "Year(s) won" = '1988'
SELECT "Country" FROM "table_61581" WHERE "Year(s) won" = '1988'