><span class="r-pr">#&gt;</span> 1: 1984-06-07         1.7042        1.9218</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2: 1984-06-22         1.9851        2.1063</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3: 1984-07-14         1.9094        2.2165</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 4: 1984-10-25         1.4626        1.8304</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 5: 1984-11-02         1.3034        1.4887</span>
<span cla