Alcohol consumption went up during Prohibition, and went back down after it was repealed.
E.g., https://en.wikipedia.org/wiki/Prohibition_in_the_United_Stat...
> Scholars estimate that consumption dropped to a low of about 60% of pre-prohibition levels around 1925, rising to almost 80% before the law was officially repealed.[citation needed] After the prohibition was implemented, alcohol continued to be consumed. However, how much compared to pre-Prohibition levels remains unclear. Studies examining the rates of cirrhosis deaths as a proxy for alcohol consumption estimated a decrease in consumption of 10–20%.[96][97][98] However, the National Institute on Alcohol Abuse and Alcoholism's studies show clear epidemiological evidence that "overall cirrhosis mortality rates declined precipitously with the introduction of Prohibition," despite widespread flouting of the law.[99] One study reviewing city-level drunkenness arrests came to a similar result.[100] And, yet another study examining "mortality, mental health and crime statistics" found that alcohol consumption fell, at first, to approximately 30 percent of its pre-Prohibition level; but, over the next several years, increased to about 60–70 percent of its pre-prohibition level.[101]
From the Ken Burns PBS "Prohibition". I don't have a transcript of it, but here's a quote from PBS:
"The solution the United States had devised to address the problem of alcohol abuse had instead made the problem even worse. The statistics of the period are notoriously unreliable, but it is very clear that in many parts of the United States more people were drinking, and people were drinking more." http://www.pbs.org/kenburns/prohibition/unintended-consequen...
Alcohol related deaths in the US are currently 2.75%. They were 3.2% in 1923.
https://www.niaaa.nih.gov/alcohol-health/overview-alcohol-co...
http://www.census.gov/popclock/
Consumption did decline initially, but then rose steadily.
"Prohibition" by Eward Behr, pg. 148
