public function getCountries($includeNoLongerUsingVAT = false)
    {
        if ($includeNoLongerUsingVAT) {
            return $this->countries;
        }

        return array_filter($this->countries, function ($country) {
            /** @var VATCountry $country */
            return $country->usedVATOnCurrentDate();
        });
    }