CREATE TABLE table_42781 ("Year" CLOB, "Races" FLOAT, "Wins" FLOAT, "Top 5" FLOAT, "Top 10" FLOAT, "Poles" FLOAT, "Avg. Start" FLOAT, "Avg. Finish" FLOAT, "Season Rank" CLOB)

What is the lowest average finish having top 5s of 0?
SELECT MIN("Avg. Finish") FROM table_42781 WHERE "Top 5" < '0'
SELECT MIN("Avg. Finish") FROM "table_42781" WHERE "Top 5" < '0'