Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Currency | Country | Generic Name or Nickname | Rating ( S&P / Moodys ) | Negotiable debt at mid-2005 ( US dollar bn equivalent) | Government financial liabilities as % of GDP (end 2003 - source : OECD ) | Issuer | Internet site |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Yen | Japan | s JGB | AA-/A2 | 6666.0 | 157.5% | Ministry of Finance (MoF) | Site |
| US dollar | United States | US Treasuries | AA+/Aaa | 4000.0 | 62.5% | Bureau of the Public Debt | Site |
| Euro | Italy | s BTP | BBB+ /Baa2 | 1530.0 | 120.9% | Dipartimento del Tesoro | Site |
| Euro | France | s OAT | AA+/Aaa | 1300.0 | 71.2% | Agence France Trésor | Site |
| Euro | Germany | Bunds | AAA/Aaa | 1020.0 | 65.1% | Finanzagentur GmbH | Site |
Question:
Name the number of countries that have the us dollar
Answer:
1.0