Count posts in post-format "status".

functions.php

add_action( 'wp_footer', 'count_statuses' );

function count_statuses()
{
	$status = 'status';
	$num = get_term_post_count_by_type( "post-format-$status", 'post_format' );
	print "<pre>{$status}es: $num</pre>";
}
/**
 * Count all post in a term.
 *
 * @author Bainternet http://wordpress.stackexchange.com/users/2487/bainternet
 * @link   {http://wordpress.stackexchange.com/a/33464/73}
 * @param  string $term
 * @param  string $taxonomy
 * @param  string $type
 * @return int
 */
function get_term_post_count_by_type( $term, $taxonomy, $type = 'post' )
{
	$args = array (
		'fields'         =>'ids',
		'posts_per_page' => -1, //-1 to get all post
		'post_type'      => $type,
		'tax_query'      => array (
			array (
				'taxonomy' => $taxonomy,
				'field'    => 'slug',
				'terms'    => $term
			)
		)
	);

	if ( $posts = get_posts( $args ) )
		return count( $posts );

	return 0;
}