CREATE TABLE table_1929755_1 (top_5 VARCHAR, avg_start VARCHAR)

HOw many top 5 starts did the team with an average start of 17.7 have?
SELECT COUNT(top_5) FROM table_1929755_1 WHERE avg_start = "17.7"
SELECT COUNT("top_5") FROM "table_1929755_1" WHERE "17.7" = "avg_start"