>#&gt;</span> (Intercept) 2.851543</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Fixed effects:</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>             Estimate Std.Err z-value   p-value</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> (Intercept)  -2.5114  0.3430 -7.3216   &lt; 1e-04</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> year          0.2330  0.0155 15.0812   &lt; 1e-04</spa