CREATE TABLE table_73355 ("Year" FLOAT, "Starts" FLOAT, "Wins" FLOAT, "Top 10" FLOAT, "Poles" FLOAT, "Avg. Start" TEXT, "Avg. Finish" TEXT, "Winnings" TEXT, "Position" TEXT, "Team ( s ) " TEXT)

How many teams finished in the top team with an average finish of 23.3?
SELECT COUNT("Top 10") FROM table_73355 WHERE "Avg. Finish" = '23.3'
SELECT COUNT("Top 10") FROM "table_73355" WHERE "Avg. Finish" = '23.3'