How to change Regions to Countries on Homepage Sidebar

Below is the current code for sigma theme locations sidebar. How do I change the regions to show countries? I tried using a similar change for using cities but it didn't work.

  <div id="home-regs">
    <h2><?php _e('All locations', 'sigma'); ?></h2>

    <div class="wrap">
      <?php $regions = RegionStats::newInstance()->listRegions('%%%%', '>', 'i_num_items DESC'); ?>

      <?php $i = 1; ?>
      <?php foreach($regions as $r) { ?>
        <?php if($i <= 20) { ?>
          <div><a href="<?php echo osc_search_url(array('page' => 'search', 'sRegion' => $r['pk_i_id']));?>"><i class="fas fa-location-arrow"></i> <span><?php echo $r['s_name']; ?></span> <em>(<?php echo $r['i_num_items']; ?>)</em></a></div>
          <?php $i++; ?>
        <?php } ?>
      <?php } ?>

    </div>
  </div>
</div>

Try this
<div id="home-regs">
  <h2><?php _e('All locations', 'sigma'); ?></h2>

  <div class="wrap">
    <?php $countries = CountryStats::newInstance()->listCountries('>', 'items DESC'); ?>

    <?php $i = 1; ?>
    <?php foreach($countries as $c) { ?>
      <?php if($i <= 20) { ?>
        <div><a href="<?php echo osc_search_url(array('page' => 'search', 'sCountry' => $c['country_code'])); ?>"><i class="fas fa-location-arrow"></i> <span><?php echo $c['country_name']; ?></span> <em>(<?php echo $c['items']; ?>)</em></a></div>
        <?php $i++; ?>
      <?php } ?>
    <?php } ?>

  </div>
</div>
Anyway, generally for countries, use of stats class may not be needed.

This code worked perfectly- and I can see where I made my error when I tried modifying it. Thanks!

Great