CREATE TABLE table_24487 ("Week of" CLOB, "Tournament" CLOB, "Champion" CLOB, "Runner-up" CLOB, "Semifinalists" CLOB, "Quarterfinalists" CLOB)

How many champions are shown for the runner-up of stefan edberg?
SELECT COUNT("Champion") FROM table_24487 WHERE "Runner-up" = 'Stefan Edberg'
SELECT COUNT("Champion") FROM "table_24487" WHERE "Runner-up" = 'Stefan Edberg'