title: Reading in R a Seasonal Polar Season Plot
body: <p>I'm trying to understand how to read the amount being measured in a Polar Seasonal Plot.</p>
  
  <p>REPREX:</p>
  
  <pre><code>library(tidyverse)  
  library(fpp2)       
  
  ggseasonplot(a10, polar = T)
  </code></pre>
  
  <p>RESULT:</p>
  
  <p><a href="https://i.stack.imgur.com/1Drvk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1Drvk.png" alt="enter image description here"></a></p>
  
  <p>For example, by looking at the plot how would I know the amount (in millions) that was sold on July 2008? On the left hand side of the plot I only see two dashes for 10 and 20 million, should the distance between 10 and 20 be my scale of 10 million?</p>