Grav\Plugin\Admin\Popularity::getMonthlyTotal PHP Method

    public function getMonthlyTotal()
    {
        if (!$this->monthly_data) {
            $this->monthly_data = $this->getData($this->monthly_file);
        }
        if (isset($this->monthly_data[date(self::MONTHLY_FORMAT)])) {
            return $this->monthly_data[date(self::MONTHLY_FORMAT)];
        } else {
            return 0;
        }
    }