0. https://www.drugcostfacts.org/public-vs-private-drug-funding
But why talk about executive pay and not marketing? Research clearly takes a backseat to marketing at these shops:
https://www.washingtonpost.com/news/wonk/wp/2015/02/11/big-p...
As for who pays for research, you're right that pharma companies now pay for over half of US biomed research, something that's been true for about a decade. I don't know how that "5 times" figure was calculated, but my figures show the government currently finances about 1/3 of biomed research, including almost all basic research.
Of course, pharma benefits from that research, too, and looking only at spends understates the value of those contributions. One recent study found that
"NIH funding contributed to published research associated with every one of the 210 new drugs approved by the Food and Drug Administration from 2010–2016."
What does big pharma reinvesting more of its revenue back into R&D have anything to do with obtaining peoples DNA through any means but directly from the owners of the DNA?
Big Pharma also spends more in lobbying efforts than any other industry...in fact double the next industry (tech)...in fact they spend in lobbying what the #2 and #3 industries (tech and insurance) spend together. Were you aware big pharma lobbying goes towards R&D tax credits for themselves?