cell-code" id="cb28"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb28-1"><a></a><span class="fu">ggplot</span>() <span class="sc">+</span></span>
<span id="cb28-2"><a></a>  <span class="fu">geom_sf</span>(<span class="at">data =</span> co, <span class="fu">aes</span>(<span class="at">fill =</span> aland<span class="sc">/</span><span class="fl">1e10</span>)) <span class="sc">+</span></span>
<span id="cb28-3"><a></a>  <span class="fu">geom_sf</span>(