public function stats() {
		$res = [];

		$query = $this->find();
		$list = $query
			->select(['count' => $query->count(), 'country_id'])
			->group('country_id')
			->hydrate(false)
			->all();

		foreach ($list as $x) {
			$res[$x['country_id']] = (int)$x['count'];
		}

		return $res;
	}