Some 2.8 million Costa Ricans are eligible to vote . NEW : Arias bows out with 47.3 percent of the vote so far . NEW : Polls show Chinchilla with 23.3 percent of vote , with 495 of sites reporting . Chinchilla represents ruling Solis . If no one takes 40 percent of the vote , a runoff election will be necessary .
NEW : Arias bows out with 47.3 percent of the vote so far . NEW : Polls show Chinchilla with 23.3 percent of vote , with 495 of sites reporting . Chinchilla represents ruling Solis . If no one takes 40 percent of the vote , a runoff election will be necessary .