Typically if you check annual reports, good management will provide that in the letters to share holders. That is, one easy source. For ex. Car max lists for past 5 years.
I easy proxy is to use ROA instead of ROIC. One it is easily available and both essentially show the underlying strength of the business. For banks and insurance, you will want to use some other measure.
It is rare to find high ROA but a low ROIC. If you screen for ROA greater than 10%, it will be an interesting experience.
