Come to think of it, electricity generation probably is a decent indicator of industrial base size.  You can't tell me the US got 4x more "efficient" over that period.
<br />#economics #energy 
<br /><a href='https://ourworldindata.org/grapher/electricity-generation?tab=chart&country=IND~USA~GBR~CHN'>https://ourworldindata.org/grapher/electricity-generation?tab=chart&country=IND~USA~GBR~CHN</a>