CREATE TABLE table_8888 ("Year" CLOB, "Starts" FLOAT, "Wins" FLOAT, "Top 5" FLOAT, "Top 10" FLOAT, "Poles" FLOAT, "Avg. Start" FLOAT, "Avg. Finish" FLOAT, "Winnings" CLOB, "Position" CLOB, "Team ( s ) " CLOB)

How many times did the team with an average start of 18.9 make the top 10?
SELECT SUM("Top 10") FROM table_8888 WHERE "Avg. Start" = '18.9'
SELECT SUM("Top 10") FROM "table_8888" WHERE "Avg. Start" = '18.9'