CREATE TABLE table_68124 ("Sport" CLOB, "Competition name" CLOB, "Competing entities" CLOB, "Age groups" CLOB, "Held every" CLOB)

How often is the table tennis competition held?
SELECT "Held every" FROM table_68124 WHERE "Sport" = 'table tennis'
SELECT "Held every" FROM "table_68124" WHERE "Sport" = 'table tennis'