CREATE TABLE table_19160 ("Year" FLOAT, "1st District" TEXT, "2nd District" TEXT, "3rd District" TEXT, "4th District" TEXT, "5th District" TEXT)

What is the last year that Howard A. Wassum was in the 5th district?
SELECT MAX("Year") FROM table_19160 WHERE "5th District" = 'Howard A. Wassum'
SELECT MAX("Year") FROM "table_19160" WHERE "5th District" = 'Howard A. Wassum'