여러 위치를 지오코딩할 때 Google Maps API v3에서 OVER_QUERY_LIMIT 오류를 방지하는 방법은 무엇입니까?

<code class="javascript">function codeAddress(vPostCode) {
    if (geocoder) {
      setTimeout(function() {
        geocoder.geocode( { 'address': "'" + vPostCode + "'"}, function(results, status) {
          if (status == google.maps.GeocoderStatus.OK) {
            map.setCenter(results[0].geometry.location);
            var marker = new google.maps.Marker({
                map: map, 
                position: results[0].geometry.location
            });
          } else {
            alert("Geocode was not successful for the following reason: " + status);
          }
        });
      }, 2000); // 2 seconds delay
    }
  }</code>