Returning to "adequate"
Checking remuneration in 2000 and 2013 shows that the top US-based FO at 84 hours credit earns 15% more dollars now than in 2000.
Inflation/cost of living has increased (conservatively) by 38% since 2000.
That means an immediate 20% increase in remuneration is necessary just to put us where we were in living standard 13 years ago.