CREATE TABLE table_18207 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

how many first elected with district being new york2
SELECT COUNT("First elected") FROM table_18207 WHERE "District" = 'New York2'
SELECT COUNT("First elected") FROM "table_18207" WHERE "District" = 'New York2'