wp_count_posts

I’m trying to display a few statistics on my website through a widget with the following code:

<?php
$count_posts = wp_count_posts('coupon_type');
$totalcoupons = $count_posts->publish;
$taxonomystore = wp_count_terms( 'store' );
echo 'Total number of coupons: '.$totalcoupons;
echo '<br />Total number of stores: '.$taxonomystore;
?>

This works just fine but I was wondering how can I improve my code so it also displays: Total number of coupons today/this week/this month/this year?

Any help is much appreciated.