You can see union membership was on the decline since the 1950s, but it accelerated around the 70s. It is hard to see the timeline in that graph, in this one it is harder to see the acceleration, but it is easier to see the timeline: https://rpubs.com/jncohen/uniondensity
You can see union membership was on the decline since the 1950s, but it accelerated around the 70s. It is hard to see the timeline in that graph, in this one it is harder to see the acceleration, but it is easier to see the timeline: https://rpubs.com/jncohen/uniondensity