return (from XmlNode currencyXml in currencyListXml
                    select new Currency
                    {
                        CurrencyName = currencyXml.SelectSingleNode("nazwa_waluty").FirstChild.Value,
                        Converter = currencyXml.SelectSingleNode("przelicznik").FirstChild.Value,
                        CurrencyCode = currencyXml.SelectSingleNode("kod_waluty").FirstChild.Value,
                        CurrencyRate = Convert.ToDouble(currencyXml.SelectSingleNode("kurs_sredni").FirstChild.Value),
                        CurrencyTableNumber = Convert.ToString(tableNumber.Value), CurrencyDate = currencyDate
                    }).ToList();
            }