CREATE TABLE table_78147 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the total Crowd number for the team that has an Away team score of 12.18 (90)?
SELECT SUM("Crowd") FROM table_78147 WHERE "Away team score" = '12.18 (90)'
SELECT SUM("Crowd") FROM "table_78147" WHERE "Away team score" = '12.18 (90)'