CREATE TABLE table_28375 ("Season" FLOAT, "Series" TEXT, "Team" TEXT, "Races" FLOAT, "Wins" FLOAT, "Poles" FLOAT, "F/Laps" FLOAT, "Podiums" FLOAT, "Points" FLOAT, "Position" TEXT)

how many wins had series formula renault 2.0 nec and the position is 18th?
SELECT "Wins" FROM table_28375 WHERE "Series" = 'Formula Renault 2.0 NEC' AND "Position" = '18th'
SELECT "Wins" FROM "table_28375" WHERE "Position" = '18th' AND "Series" = 'Formula Renault 2.0 NEC'