border" srcset="//upload.wikimedia.org/wikipedia/en/thumb/a/a4/Flag_of_the_United_States.svg/35px-Flag_of_the_United_States.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/a/a4/Flag_of_the_United_States.svg/46px-Flag_of_the_United_States.svg.png 2x" data-file-width="1235" data-file-height="650" /></a></span> <a href="//en.wikipedia.org/wiki/United_States" title="United States">United States</a></td>
<td>2013</td>
<td></td>
<td>Lucerne, Switzerland</td>
<td><sup id="cite_ref-4" class="reference"><a h