CREATE TABLE table_18342 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

How many incumbents are there in district Louisiana 5?
SELECT COUNT("Incumbent") FROM table_18342 WHERE "District" = 'Louisiana 5'
SELECT COUNT("Incumbent") FROM "table_18342" WHERE "District" = 'Louisiana 5'