the profit rate & recession

[Les Schaffer <schaffer@xxxxxxxxxxxxx>]

Fred wrote:

> Rather, the rate of profit fluctuated up and then down in the 1980s,
> so that the rate of profit in 1992 (7.0%) was only slightly higher
> than it was in 1980 (6.2%).  Similar fluctuations (with somewhat
> larger amplitudes)

where can i find data for the ROP? is it possible to find the
distribution of this value amongst different industries?

thanks

les schaffer