span>
<span class="r-out co"><span class="r-pr">#&gt;</span>      2                         35 (22.2)                 32 (20.8)           </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>      3                         56 (35.4)                 64 (41.6)           </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>      4                         55 (34.8)                 54 (35.1)           </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                          Strati