Earlier I mentioned that the 4-week moving average of weekly claims was the lowest since April 2000. And if the average falls just a little further, the average will be the lowest in over 40 years.
Of course that doesn't take into account the size of the labor force.
The following graph shows the 4-week moving average of weekly claims since 1967 as a percent of the labor force.
Calculated Risk
As a percent of the labor force, weekly claims are at an all time record low.
Note: There is a general downward slope to weekly claims - interrupted by periods of recession. The downward slope is probably related to changes in hiring practices - such as background checks and drug tests, and maybe better planning.