CREATE TABLE table_8489 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Ground" CLOB, "Date" CLOB, "Crowd" FLOAT)

What's the crowd size with an away score of 16.9 (105)?
SELECT "Crowd" FROM table_8489 WHERE "Away team score" = '16.9 (105)'
SELECT "Crowd" FROM "table_8489" WHERE "Away team score" = '16.9 (105)'