How to include post count in this “get_tags” snippet

Question

Can anyone tell me how I can show a post count in this code snippet?

<?php $tags = get_tags();
   if ($tags) {
   foreach ($tags as $tag) {
   echo '<li><a href="' . get_tag_link( $tag->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $tag->name ) . '" ' . '>' . $tag->name.'</a> </li> ';
   }
};?>