CREATE TABLE table_77221 ("Date" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Box Score" TEXT, "Report" TEXT)

What was the number of the crowd when the Wollongong Hawks were the home team?
SELECT SUM("Crowd") FROM table_77221 WHERE "Home team" = 'wollongong hawks'
SELECT SUM("Crowd") FROM "table_77221" WHERE "Home team" = 'wollongong hawks'