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"><span class="r-pr">#&gt;</span> [101] "VA_08"      "QC_08"      "VC_08"      "QE_08"      "VE_08"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [106] "QA_09"      "VA_09"      "QC_09"      "VC_09"      "QE_09"     </span>
<span class="r-out co"><