st'>"sales"</span>)
<span class='no'>t</span>$<span class='no'>df</span></div><div class='output co'>#&gt;      coid                        coname period     sales
#&gt; 8517  WMT         Wal-Mart Stores, Inc. FY2015 485651.00
#&gt; 8518  WMT         Wal-Mart Stores, Inc. FY2016 482130.00
#&gt; 8516  WMT         Wal-Mart Stores, Inc. FY2014 476294.00
#&gt; 8664  XOM       Exxon Mobil Corporation FY2013 420836.00
#&gt; 8665  XOM       Exxon Mobil Corporation FY2014 394105.00
#&gt; 8666  XOM       Exxon Mobil