eneche</a> (COL)</li>
<li>1966: <a href="//en.wikipedia.org/w/index.php?title=Valent%C3%ADn_Robles&amp;action=edit&amp;redlink=1" class="new" title="Valentín Robles (page does not exist)">Valentín Robles</a> (MEX)</li>
<li>1970: <a href="//en.wikipedia.org/wiki/Alfredo_Pe%C3%B1aloza" title="Alfredo Peñaloza">Alfredo Peñaloza</a> (MEX)</li>
<li>1974: <a href="//en.wikipedia.org/w/index.php?title=Gilberto_Serna&amp;action=edit&amp;redlink=1" class="new" title="Gilberto Serna (page does not exist)">Gilbert