Not what you are asking for, but related in that it is much more detailed background on the entire process:
Not a chart, but more on target:
"... The
annual list price of Bristol Myers Squibb’s
Eliquis, a blood thinner that reduces the risk of stroke, is $7,100 in the US. But in Japan, it’s $940; in Canada, it’s $900; in Germany, it’s $770; in the United Kingdom, it’s $760; and in France, it’s $650.
Johnson & Johnson’s arthritis drug
Stelara carries an annual list price of $79,000 in the US. In Germany, it’s $30,000; in Canada, it’s $20,000; in the UK, it’s $16,000; in Japan, it’s $14,000; and in France, it’s $12,000.
And the annual list price of Merck’s cancer drug
Keytruda is $191,000 in the US, while in the UK, it’s $115,000; in Canada, it’s $112,000; in France, it’s $91,000; in Germany, it’s $89,000; and in Japan, it’s $44,000. ..." [Note: Keytruda didn't make the list of reductions]