Worst Post WWII Slump in Industrial Production

Econbrowser compares recessions

Industrial production:

Manufacturing production (since 1973):

and refers to AngryBear with the same IP data in a different format:

The current cliff diving is impressive. 1973 had a similar drop.

Angry Bear's chart shows the average trough happening three months from now.

The current drop does not seem of the "average kind" though.