english: You can see a little bit of a slowdown there in the mid-'70s, but it matches up pretty well with the Second Industrial Revolution, when factories were learning how to electrify their operations.
non_english: Možete videti malo usporenje sredinom '70-ih, ali prilično dobro se poklapa  sa Drugom industrijskom revolucijom kada su fabrike učile kako da uvedu struju u svoje operacije.