Released in late April 2017, the GHSA report "Drug-Impaired Driving: A Guide for the States" is 56 pages of anxiety over American drivers using drugs:
Unfortunately for the opioid-epidemic-mongers, only 4.6 percent of all court-convicted DUI cases involved prescription drugs -- a mere third of marijuana impairment and one-twelfth of alcohol impairment, by frequency.
Of note to the critical observer, is that GHSA does -not- state the absolute number of DUI cases in the United States.
It only breaks-down those cases by percentages, not absolute case numbers; so they cannot be summed into a total of cases, that could have been compared to case totals of other crimes. (Because DUIs are intrastate crimes, the FBI does not report statistics on these types of cases, as it does for interstate crimes.)
If nothing else, the the GHSA's findings underscore why there -isn't- an alleged "opioid epidemic" after all. Doctors should continue prescribing painkillers to those who need it, knowing fully well it is unlikely their patients will drive except at least halfway before their next dose. (And therefore, impaired -below- DUI levels.)
Also, can anyone get the "click or tap to reveal" features to work on page 13 of the PDF? It really seems like the GHSA botched that functionality, thereby depriving readers of the hidden information that -cannot- be accessed by the broken "click or tap to reveal" feature.