CREATE TABLE table_74258 ("Year" FLOAT, "Round" FLOAT, "Winner" CLOB, "Hawthorn score" CLOB, "St Kilda score" CLOB, "Attendance" FLOAT, "Venue" CLOB, "Silk-Miller Medallist" CLOB)

What is the attendance when the hawthorn score is 18.15.123?
SELECT "Attendance" FROM table_74258 WHERE "Hawthorn score" = '18.15.123'
SELECT "Attendance" FROM "table_74258" WHERE "Hawthorn score" = '18.15.123'