When was the UK last in the top 2 countries globally by GDP? Certainly pre-WW2? They're still in the same cluster of countries by GDP as the #3 country so fall

When was the UK last in the top 2 countries globally by GDP? Certainly pre-WW2? They're still in the same cluster of countries by GDP as the #3 country so falling from #4 to #6 doesn't look so drastic.