CREATE TABLE table_56036 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was the crowd size when the visiting team scored 23.18 (156)?
SELECT COUNT("Crowd") FROM table_56036 WHERE "Away team score" = '23.18 (156)'
SELECT COUNT("Crowd") FROM "table_56036" WHERE "Away team score" = '23.18 (156)'