CREATE TABLE table_18447 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

When was Paul Rogers first elected?
SELECT "First elected" FROM table_18447 WHERE "Incumbent" = 'Paul Rogers'
SELECT "First elected" FROM "table_18447" WHERE "Incumbent" = 'Paul Rogers'