CREATE TABLE table_43507 ("Tournament" TEXT, "1978" TEXT, "1979" TEXT, "1980" TEXT, "1982" TEXT, "1983" TEXT, "1984" TEXT, "1985" TEXT, "1986" TEXT, "1987" TEXT, "1988" TEXT, "1989" TEXT, "1990" TEXT, "1991" TEXT, "1992" TEXT, "Career SR" TEXT)

What is 1992, when 1990 is 'Grand Slams'?
SELECT "1992" FROM table_43507 WHERE "1990" = 'grand slams'
SELECT "1992" FROM "table_43507" WHERE "1990" = 'grand slams'