function getNumberFormat()
{
if ($this->numberFormat === null) {
$elements = $this->findInfo('NumberElements');
$patterns = $this->findInfo('NumberPatterns');
$currencies = $this->getCurrencies();
$data = array('NumberElements' => $elements, 'NumberPatterns' => $patterns, 'Currencies' => $currencies);
$this->setNumberFormat(new NumberFormatInfo($data));
}
return $this->numberFormat;
}