private function getNumberFormatter()
    {
        if ($this->numberFormatter) {
            return $this->numberFormatter;
        }

        return $this->numberFormatter = NumberFormatter::create($this->locale, NumberFormatter::DECIMAL);
    }
private function getNumberFormatter()
    {
        if ($this->numberFormatter) {
            return $this->numberFormatter;
        }

        return $this->numberFormatter = NumberFormatter::create($this->locale, NumberFormatter::DECIMAL);
    }
Returns the number formatter.

@return NumberFormatter