</span>  [81] "ve_04"      "qa_05"      "va_05"      "qc_05"      "vc_05"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [86] "qe_05"      "ve_05"      "qa_06"      "va_06"      "qc_06"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [91] "vc_06"      "qe_06"      "ve_06"      "qa_07"      "va_07"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [96] "qc_07"      "vc_07"      "qe_07"      "ve_07"      "qa_08"     </span>
<span class="r-out co"><spa