I was unable to find extended statistics, but DMV rates over the past 3 decades seem to have fallen dramatically. During the 1950s there were no laws to protect battered women and assaults on women were not considered as a crime. Even in 1960 New York domestic violence cases are transferred from criminal court to civil court, where only civil procedures apply. The husband never faces as harsh penalties as he would suffer if he was found guilty in criminal court for assaulting a stranger.

“The rate of domestic violence declined 63%, from 13.5 victimizations per 1,000 persons age 12 or older in 1994 to 5.0 per 1,000 in 2012 (appendix table 3).”

- https://bjs.ojp.gov/content/pub/pdf/ndv0312.pdf

Also, getting accurate statistic pre 1960s for DMV is likely going to be difficult. Here’s a short TIME piece illustrating how views on DMV can alter studies and how DMV is qualified/quantified given the times.

- https://time.com/3426225/domestic-violence-therapy/

Take a look at some of these poster, DMV was more or less normalized in the cultural ethos at the time: https://ibb.co/279sjZ2