CREATE TABLE table_53293 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

How big was the crowd when Richmond was the away team?
SELECT "Crowd" FROM table_53293 WHERE "Away team" = 'richmond'
SELECT "Crowd" FROM "table_53293" WHERE "Away team" = 'richmond'