Ultimately, it does not answer a key question for investigators — how much the Sacklers are actually worth and where their money is located.

“The fact that the Sackler family removed more than $10 billion when Purdue’s OxyContin was directly causing countless addictions, hundreds of thousands of deaths, and tearing apart millions of families is further reason that we must see detailed financial records showing how much the Sacklers profited from the nation’s deadly opioid epidemic,” said Letitia James, the attorney general of New York, in a statement. “We need full transparency into their total assets and must know whether they sheltered them in an effort to protect against creditors and victims.”

The report does detail checks and disbursements that Purdue made to the family in the years after the company’s guilty plea in 2007 to federal charges that it deceptively marketed OxyContin as nonaddictive. It could be used to support allegations as to whether the Sacklers intentionally withdrew large annual sums to shield the money from litigation as legal pressures mounted.

The audit notes that in the first dozen years that OxyContin was approved — from 1995 through 2007 — Purdue’s payouts to the Sacklers totaled just $1.32 billion; from 2008 through 2017, the period of intense scrutiny by the auditors, the payments totaled $10.7 billion.

By 2017, the Sacklers had voted to stop taking cash payments and so Purdue ended the practice.

The report also shows that nearly half the amount sent to the Sacklers was designated to pay taxes, suggesting that less than half the Sackler distributions might actually be available in cash. During the years covered by the audit, the report says, Purdue paid $4.1 billion to the Sacklers, $1.6 billion to their affiliated companies and $4.6 billion for taxes.