Number of months of experience in this KSA?  

       Use "Actual Time", estimates only.  E.G. if you've been typing
       for 40 years but you were only actually on a typewriter 1/40th
       of the time, during your average work day, put 1 year here, not
       40 years.  Then full-time typists who actually type 8 hours per
       day & have 2 years of experience will properly show more experience
       than you.  But if you put down 40 years, the data is inaccurate,
       and no-one benefits from it, you will find yourself in a job that
       expects you to have lots of typing experience & you may fail the
       job.  You do not benefit from putting down 40 years, the agency/
       company does not benefit, & neither does the full time typist 
       with 2 solid years of typing experience.

       Try to estimate what fraction of the time on the job you spent
       using this KSA, then key in your Number of months experience
       using this KSA (assuming a full-time or 8 hour day).