The rate has already dropped from a peak of 23 percent in 1974.
The rate reached a peak of 15.2 percent in 1983, just after the last recession, and has declined each year since then.
That is down from a peak of 15.4 percent in 2002.
That is down from a peak of 44 percent, but double the low point reached in early 2000.
But after relaxation, inflation immediately shot up, to its current peak of more than 10 percent.
The utilization rate had reached a peak of 85.1 percent last winter.
But that was down from a peak of 75 percent set in 2000.
Recently, he says, they reached a peak of 57 percent.
The figure remained lower than the recent peak of 16.3 percent in 1998.
Unemployment rose above its natural rate to a peak of 7.6 percent in June 1992.