WPで総投稿数を表示する

<?php $numposts = $wpdb->get_var("SELECT count(*) FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post'");
if (0 < $numposts)
     $numposts = number_format($numposts);
echo $numposts.' 個のノウハウ集。';
?>