Drupal - Theming The Table

To render a table in Drupal, use
function get_table(){
    $header = array(t('Name'),t('City'),t('Country'));
    $rows = array(
        array(t('Bill Gates'), t('Redmond'), t('Americas')),
        array(t('Luna Maya'), t('Denpasar'), t('Indonesia')),
        array(t('Aura Kasih'), t('Jakarta'), t('Indonesia')),
    );
    $output = theme('table',array('header' => $header,
                                  'rows'   => $rows));
    return $output;
}

Drupal - Theming The Table