public function getCountryCodeMapping()
    {
        $regionDataProvider = StaticContainer::get('Piwik\Intl\Data\Provider\RegionDataProvider');

        $countryCodeList = $regionDataProvider->getCountryList();

        array_walk($countryCodeList, function(&$item, $key) {
            $item = Piwik::translate('Intl_Country_'.strtoupper($key));
        });

        return $countryCodeList;
    }