16  29.66667 0.17868117 0.14577063 0.2190219</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 17  30.44444 0.17276468 0.14091962 0.2118061</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 18  31.22222 0.16741962 0.13651454 0.2053212</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 19  32.00000 0.16263204 0.13255476 0.1995340</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 20  32.77778 0.15838349 0.12904044 0.1943990</span>
<span class="r-out co"><span cla