How difficult, and how costly, is a hard Brexit? by The Guardian
The bubbles on this page show each of 4,935 trade lines, and the extent of tariffs affecting them; bigger bubbles for a higher value of trade, darker colours for heavier tariffs.
We calculated the cost in customs duties for each product if Britain carried on exporting to the EU as in 2015 but without a deal. The total bill is $7.6bn, but the pain is not felt equally by all industries, nor by exporters to all destinations.