CREATE TABLE table_204_678 (id DECIMAL, "record" TEXT, "athlete" TEXT, "nation" TEXT, "venue" TEXT, "date" TEXT, "#" DECIMAL)

what is the difference between the number of times the record has been set by the czech republic and the number of times the record has been set by china ?
SELECT ABS((SELECT COUNT(*) FROM table_204_678 WHERE "nation" = 'czech republic') - (SELECT COUNT(*) FROM table_204_678 WHERE "nation" = 'china'))
WITH "_u_0" AS (SELECT COUNT(*), 'czech republic' AS "_u_1" FROM "table_204_678" GROUP BY 'czech republic'), "_u_2" AS (SELECT COUNT(*), 'china' AS "_u_3" FROM "table_204_678" GROUP BY 'china') SELECT ABS(COALESCE("_u_0"."", *) - COALESCE("_u_2"."", *)) LEFT JOIN "_u_0" AS "_u_0" ON "_u_0"."_u_1" = "nation" LEFT JOIN "_u_2" AS "_u_2" ON "_u_2"."_u_3" = "nation"