protected function parse($output)
    {
        $lines = explode(PHP_EOL, $output);
        $stats = array();
        foreach ($lines as $line) {
            $data = explode(' ', $line);
            array_walk($data, 'trim');
            $stats[] = array_values(array_filter($data, function ($value) {
                return strlen($value) > 0;
            }));
        }

        return $stats;
    }