Are you sure?  The homepage says &quot;Scroll, zoom and click on individual stations to see how passenger numbers have changed since 1997&quot;. I think it&#x27;s for the whole period.<p>Many stations are white at the end, but have no reason for the increase to have been in the final year. Picking one I used to travel through [1], it&#x27;s white on the map, last year&#x27;s increase was &lt;10%, but the increase since 1997 is huge.<p>(Also, this is Great Britain, since Northern Ireland isn&#x27;t included.)<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Barnes_Bridge_railway_station" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Barnes_Bridge_railway_station</a>