18 different official currencies
... that 18 different official currencies are currently in use in the countries of North America?
... that <b id="mwB8E"><a class="mw-redirect" href="./List_of_currencies_in_North_America" id="mwB8I" rel="mw:WikiLink" title="List of currencies in North America">18 different official currencies</a></b> are currently in use in the countries of <a href="./North_America" id="mwB8M" rel="mw:WikiLink" title="North America">North America</a>?