'>base_size</span> <span class='kw'>=</span> <span class='fl'>18</span>))

<span class='co'># with pre-computed data ----------------------------------------------------</span>
<span class='co'># 2018/2008 US census data by age and gender</span>
<span class='fu'><a href='https://rdrr.io/r/utils/data.html'>data</a></span>(<span class='no'>us_2018</span>)
<span class='fu'><a href='https://rdrr.io/r/utils/data.html'>data</a></span>(<span class='no'>us_2008</span>)
<span class='fu'>age_pyramid</span>(<span clas