CREATE TABLE table_22933 ("Year" FLOAT, "Starts" FLOAT, "Wins" FLOAT, "Top 5" FLOAT, "Top 10" FLOAT, "Poles" FLOAT, "Avg. Start" TEXT, "Avg. Finish" TEXT, "Winnings" TEXT, "Position" TEXT, "Team ( s ) " TEXT)

HOw many top 5 starts did the team with an average start of 17.7 have?
SELECT COUNT("Top 5") FROM table_22933 WHERE "Avg. Start" = '17.7'
SELECT COUNT("Top 5") FROM "table_22933" WHERE "Avg. Start" = '17.7'